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Symbols not found for architecture x86_64 MacOS Yosemite

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  • S saeedBaba

    ok I still do not know how to solve this.

    How can I reinstall opencv to be compatible?

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #14

    @saeedBaba said in Symbols not found for architecture x86_64 MacOS Yosemite:

    How can I reinstall opencv to be compatible?

    You could build OpenCV by yourself using same compiler as you use for your Qt project.
    See https://docs.opencv.org/master/d0/db2/tutorial_macos_install.html for details.

    But maybe we should first clarify that this is really the issue.
    Can you post whole build log? At least the part where linker is called and its output. Usually linker would print a warning if it dismisses an incompatible library.

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    1 Reply Last reply
    0
    • S Offline
      S Offline
      saeedBaba
      wrote on last edited by
      #15

      @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

      https://docs.opencv.org/master/d0/db2/tutorial_macos_install.html

      it this the whole build log?

      14:27:37: Running steps for project opencv_test_qmake...
      14:27:37: Configuration unchanged, skipping qmake step.
      14:27:37: Starting: "/usr/bin/make" -j8
      /Users/apple/Qt6/6.1.1/clang_64/bin/qmake -o Makefile ../opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
      /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
      Undefined symbols for architecture x86_64:
        "cv::imread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
            _main in main.o
      ld: symbol(s) not found for architecture x86_64
      clang: error: linker command failed with exit code 1 (use -v to see invocation)
      make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
      14:27:37: The process "/usr/bin/make" exited with code 2.
      Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
      When executing step "Make"
      14:27:37: Elapsed time: 00:00.
      

      if not, where can I find it?

      jsulmJ 1 Reply Last reply
      0
      • S saeedBaba

        @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

        https://docs.opencv.org/master/d0/db2/tutorial_macos_install.html

        it this the whole build log?

        14:27:37: Running steps for project opencv_test_qmake...
        14:27:37: Configuration unchanged, skipping qmake step.
        14:27:37: Starting: "/usr/bin/make" -j8
        /Users/apple/Qt6/6.1.1/clang_64/bin/qmake -o Makefile ../opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
        /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
        Undefined symbols for architecture x86_64:
          "cv::imread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
              _main in main.o
        ld: symbol(s) not found for architecture x86_64
        clang: error: linker command failed with exit code 1 (use -v to see invocation)
        make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
        14:27:37: The process "/usr/bin/make" exited with code 2.
        Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
        When executing step "Make"
        14:27:37: Elapsed time: 00:00.
        

        if not, where can I find it?

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #16

        @saeedBaba Looks good.
        Please try to add opencv_imcodec to LIBS as I suggested before. I think this is the lib where cv::imread is actually defined.

        https://forum.qt.io/topic/113070/qt-code-of-conduct

        1 Reply Last reply
        0
        • S Offline
          S Offline
          saeedBaba
          wrote on last edited by saeedBaba
          #17

          @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

          opencv_imcodec

          same error:

          15:19:32: Running steps for project opencv_test_qmake...
          15:19:33: Starting: "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" /usr/local/lib/C++Project/Qt6/opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
          Info: creating stash file /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/.qmake.stash
          15:19:33: The process "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" exited normally.
          15:19:33: Starting: "/usr/bin/make" -f /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/Makefile qmake_all
          make: Nothing to be done for `qmake_all'.
          15:19:33: The process "/usr/bin/make" exited normally.
          15:19:33: Starting: "/usr/bin/make" -j8
          /Users/apple/Qt6/6.1.1/clang_64/libexec/uic ../opencv_test_qmake/dialog.ui -o ui_dialog.h
          /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o main.o ../opencv_test_qmake/main.cpp
          /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o dialog.o ../opencv_test_qmake/dialog.cpp
          /Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -dM -E -o moc_predefs.h /Users/apple/Qt6/6.1.1/clang_64/mkspecs/features/data/dummy.cpp
          /Users/apple/Qt6/6.1.1/clang_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/moc_predefs.h -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -I/usr/local/lib/C++Project/Qt6/opencv_test_qmake -I/usr/local/include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1 -I/Library/Developer/CommandLineTools/usr/lib/clang/12.0.5/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/usr/include -F/Users/apple/Qt6/6.1.1/clang_64/lib ../opencv_test_qmake/dialog.h -o moc_dialog.cpp
          /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o moc_dialog.o moc_dialog.cpp
          /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -opencv_imcodec -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
          Undefined symbols for architecture x86_64:
            "cv::imread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
                _main in main.o
          ld: symbol(s) not found for architecture x86_64
          clang: error: linker command failed with exit code 1 (use -v to see invocation)
          make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
          15:19:36: The process "/usr/bin/make" exited with code 2.
          Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
          When executing step "Make"
          15:19:36: Elapsed time: 00:03.
          

          Need Reputation to post more often.

          jsulmJ 1 Reply Last reply
          0
          • S saeedBaba

            @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

            opencv_imcodec

            same error:

            15:19:32: Running steps for project opencv_test_qmake...
            15:19:33: Starting: "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" /usr/local/lib/C++Project/Qt6/opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
            Info: creating stash file /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/.qmake.stash
            15:19:33: The process "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" exited normally.
            15:19:33: Starting: "/usr/bin/make" -f /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/Makefile qmake_all
            make: Nothing to be done for `qmake_all'.
            15:19:33: The process "/usr/bin/make" exited normally.
            15:19:33: Starting: "/usr/bin/make" -j8
            /Users/apple/Qt6/6.1.1/clang_64/libexec/uic ../opencv_test_qmake/dialog.ui -o ui_dialog.h
            /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o main.o ../opencv_test_qmake/main.cpp
            /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o dialog.o ../opencv_test_qmake/dialog.cpp
            /Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -dM -E -o moc_predefs.h /Users/apple/Qt6/6.1.1/clang_64/mkspecs/features/data/dummy.cpp
            /Users/apple/Qt6/6.1.1/clang_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/moc_predefs.h -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -I/usr/local/lib/C++Project/Qt6/opencv_test_qmake -I/usr/local/include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1 -I/Library/Developer/CommandLineTools/usr/lib/clang/12.0.5/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/usr/include -F/Users/apple/Qt6/6.1.1/clang_64/lib ../opencv_test_qmake/dialog.h -o moc_dialog.cpp
            /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o moc_dialog.o moc_dialog.cpp
            /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -opencv_imcodec -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
            Undefined symbols for architecture x86_64:
              "cv::imread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
                  _main in main.o
            ld: symbol(s) not found for architecture x86_64
            clang: error: linker command failed with exit code 1 (use -v to see invocation)
            make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
            15:19:36: The process "/usr/bin/make" exited with code 2.
            Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
            When executing step "Make"
            15:19:36: Elapsed time: 00:03.
            

            Need Reputation to post more often.

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #18

            @saeedBaba Did you do a complete rebuild after changing pro file? Delete build folder, run qmake and build?

            https://forum.qt.io/topic/113070/qt-code-of-conduct

            1 Reply Last reply
            1
            • S Offline
              S Offline
              saeedBaba
              wrote on last edited by
              #19

              Need more reputation to post faster.

              15:19:32: Running steps for project opencv_test_qmake...
              15:19:33: Starting: "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" /usr/local/lib/C++Project/Qt6/opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
              Info: creating stash file /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/.qmake.stash
              15:19:33: The process "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" exited normally.
              15:19:33: Starting: "/usr/bin/make" -f /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/Makefile qmake_all
              make: Nothing to be done for `qmake_all'.
              15:19:33: The process "/usr/bin/make" exited normally.
              15:19:33: Starting: "/usr/bin/make" -j8
              /Users/apple/Qt6/6.1.1/clang_64/libexec/uic ../opencv_test_qmake/dialog.ui -o ui_dialog.h
              /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o main.o ../opencv_test_qmake/main.cpp
              /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o dialog.o ../opencv_test_qmake/dialog.cpp
              /Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -dM -E -o moc_predefs.h /Users/apple/Qt6/6.1.1/clang_64/mkspecs/features/data/dummy.cpp
              /Users/apple/Qt6/6.1.1/clang_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/moc_predefs.h -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -I/usr/local/lib/C++Project/Qt6/opencv_test_qmake -I/usr/local/include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1 -I/Library/Developer/CommandLineTools/usr/lib/clang/12.0.5/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/usr/include -F/Users/apple/Qt6/6.1.1/clang_64/lib ../opencv_test_qmake/dialog.h -o moc_dialog.cpp
              /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o moc_dialog.o moc_dialog.cpp
              /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -opencv_imcodec -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
              Undefined symbols for architecture x86_64:
                "cv::imread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
                    _main in main.o
              ld: symbol(s) not found for architecture x86_64
              clang: error: linker command failed with exit code 1 (use -v to see invocation)
              make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
              15:19:36: The process "/usr/bin/make" exited with code 2.
              Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
              When executing step "Make"
              15:19:36: Elapsed time: 00:03.
              
              jsulmJ 1 Reply Last reply
              0
              • S saeedBaba

                Need more reputation to post faster.

                15:19:32: Running steps for project opencv_test_qmake...
                15:19:33: Starting: "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" /usr/local/lib/C++Project/Qt6/opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
                Info: creating stash file /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/.qmake.stash
                15:19:33: The process "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" exited normally.
                15:19:33: Starting: "/usr/bin/make" -f /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/Makefile qmake_all
                make: Nothing to be done for `qmake_all'.
                15:19:33: The process "/usr/bin/make" exited normally.
                15:19:33: Starting: "/usr/bin/make" -j8
                /Users/apple/Qt6/6.1.1/clang_64/libexec/uic ../opencv_test_qmake/dialog.ui -o ui_dialog.h
                /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o main.o ../opencv_test_qmake/main.cpp
                /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o dialog.o ../opencv_test_qmake/dialog.cpp
                /Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -dM -E -o moc_predefs.h /Users/apple/Qt6/6.1.1/clang_64/mkspecs/features/data/dummy.cpp
                /Users/apple/Qt6/6.1.1/clang_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/moc_predefs.h -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -I/usr/local/lib/C++Project/Qt6/opencv_test_qmake -I/usr/local/include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1 -I/Library/Developer/CommandLineTools/usr/lib/clang/12.0.5/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/usr/include -F/Users/apple/Qt6/6.1.1/clang_64/lib ../opencv_test_qmake/dialog.h -o moc_dialog.cpp
                /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o moc_dialog.o moc_dialog.cpp
                /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -opencv_imcodec -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
                Undefined symbols for architecture x86_64:
                  "cv::imread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
                      _main in main.o
                ld: symbol(s) not found for architecture x86_64
                clang: error: linker command failed with exit code 1 (use -v to see invocation)
                make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
                15:19:36: The process "/usr/bin/make" exited with code 2.
                Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
                When executing step "Make"
                15:19:36: Elapsed time: 00:03.
                
                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by jsulm
                #20

                @saeedBaba I don't see -lopencv_imcodec in the linker call.
                Please post your current pro file, it looks like you forgot to put - in -opencv_imcodec -> should be -lopencv_imcodec
                And I think it should be: -lopencv_imgcodecs

                https://forum.qt.io/topic/113070/qt-code-of-conduct

                1 Reply Last reply
                0
                • S Offline
                  S Offline
                  saeedBaba
                  wrote on last edited by
                  #21

                  @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                  -lopencv_imcodec

                  QT       += core gui
                  
                  greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                  
                  CONFIG += c++11
                  
                  # You can make your code fail to compile if it uses deprecated APIs.
                  # In order to do so, uncomment the following line.
                  #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                  
                  SOURCES += \
                      main.cpp \
                      dialog.cpp
                  
                  HEADERS += \
                      dialog.h
                  
                  FORMS += \
                      dialog.ui
                  
                  #INCLUDEPATH += /usr/local/Cellar/opencv/4.5.2_4/include/opencv4
                  
                  #LIBS += -L/usr/local/Cellar/opencv/4.5.2_4/lib \
                  #     -lopencv_core \
                  #     -lopencv_imgproc \
                  #     -lopencv_features2d\
                  #     -lopencv_highgui
                  #     -lopencv_imcodec
                  #     -lopencv_calib3d
                  
                  
                  #INCLUDEPATH += /usr/local/include/opencv4
                  
                  #LIBS += -L/usr/local/lib \
                  #     -lopencv_core \
                  #     -lopencv_imgproc \
                  #     -lopencv_features2d\
                  #     -lopencv_highgui
                  #     -lopencv_calib3d
                  #     -lopencv_imcodec
                  
                  #QMAKE_MACOSX_DEPLOYMENT_TARGET = 11.0
                  
                  # Default rules for deployment.
                  qnx: target.path = /tmp/$${TARGET}/bin
                  else: unix:!android: target.path = /opt/$${TARGET}/bin
                  !isEmpty(target.path): INSTALLS += target
                  
                  macx {
                      INCLUDEPATH += /usr/local/include/opencv4
                  
                      QMAKE_MACOSX_DEPLOYMENT_TARGET = 11.0
                  
                      LIBS += -L/usr/local/lib
                      LIBS += -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -lopencv_imcodec
                  
                  }
                  

                  LOG:

                  /Users/apple/Qt6/6.1.1/clang_64/bin/qmake -o Makefile ../opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
                  /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -lopencv_imcodec -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
                  ld: library not found for -lopencv_imcodec
                  clang: error: linker command failed with exit code 1 (use -v to see invocation)
                  make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
                  15:39:26: The process "/usr/bin/make" exited with code 2.
                  Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
                  When executing step "Make"
                  15:39:26: Elapsed time: 00:00.
                  
                  jsulmJ 1 Reply Last reply
                  0
                  • S saeedBaba

                    @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                    -lopencv_imcodec

                    QT       += core gui
                    
                    greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
                    
                    CONFIG += c++11
                    
                    # You can make your code fail to compile if it uses deprecated APIs.
                    # In order to do so, uncomment the following line.
                    #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
                    
                    SOURCES += \
                        main.cpp \
                        dialog.cpp
                    
                    HEADERS += \
                        dialog.h
                    
                    FORMS += \
                        dialog.ui
                    
                    #INCLUDEPATH += /usr/local/Cellar/opencv/4.5.2_4/include/opencv4
                    
                    #LIBS += -L/usr/local/Cellar/opencv/4.5.2_4/lib \
                    #     -lopencv_core \
                    #     -lopencv_imgproc \
                    #     -lopencv_features2d\
                    #     -lopencv_highgui
                    #     -lopencv_imcodec
                    #     -lopencv_calib3d
                    
                    
                    #INCLUDEPATH += /usr/local/include/opencv4
                    
                    #LIBS += -L/usr/local/lib \
                    #     -lopencv_core \
                    #     -lopencv_imgproc \
                    #     -lopencv_features2d\
                    #     -lopencv_highgui
                    #     -lopencv_calib3d
                    #     -lopencv_imcodec
                    
                    #QMAKE_MACOSX_DEPLOYMENT_TARGET = 11.0
                    
                    # Default rules for deployment.
                    qnx: target.path = /tmp/$${TARGET}/bin
                    else: unix:!android: target.path = /opt/$${TARGET}/bin
                    !isEmpty(target.path): INSTALLS += target
                    
                    macx {
                        INCLUDEPATH += /usr/local/include/opencv4
                    
                        QMAKE_MACOSX_DEPLOYMENT_TARGET = 11.0
                    
                        LIBS += -L/usr/local/lib
                        LIBS += -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -lopencv_imcodec
                    
                    }
                    

                    LOG:

                    /Users/apple/Qt6/6.1.1/clang_64/bin/qmake -o Makefile ../opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
                    /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -lopencv_imcodec -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
                    ld: library not found for -lopencv_imcodec
                    clang: error: linker command failed with exit code 1 (use -v to see invocation)
                    make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
                    15:39:26: The process "/usr/bin/make" exited with code 2.
                    Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
                    When executing step "Make"
                    15:39:26: Elapsed time: 00:00.
                    
                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #22

                    @saeedBaba said in Symbols not found for architecture x86_64 MacOS Yosemite:

                    -lopencv_imcodec

                    -lopencv_imgcodecs

                    https://forum.qt.io/topic/113070/qt-code-of-conduct

                    1 Reply Last reply
                    2
                    • S Offline
                      S Offline
                      saeedBaba
                      wrote on last edited by
                      #23

                      THANKS ALOT!

                      IT IS FINALLY WORKING!!!!

                      can you give me a reputation so I can post faster?

                      one more question:
                      How can I know what libraries to include for the future? how should I check?

                      jsulmJ 1 Reply Last reply
                      1
                      • S saeedBaba

                        THANKS ALOT!

                        IT IS FINALLY WORKING!!!!

                        can you give me a reputation so I can post faster?

                        one more question:
                        How can I know what libraries to include for the future? how should I check?

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #24

                        @saeedBaba said in Symbols not found for architecture x86_64 MacOS Yosemite:

                        How can I know what libraries to include for the future? how should I check?

                        In case of OpenCV you can see in the documentation URL: https://docs.opencv.org/3.4/d4/da8/group__imgcodecs.html and from the include header (at least in this case):

                        #include <opencv2/imgcodecs.hpp>
                        

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

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                          S Offline
                          saeedBaba
                          wrote on last edited by
                          #25

                          @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                          https://docs.opencv.org/3.4/d4/da8/group__imgcodecs.html

                          for example, I get the same error for this code:
                          1- where should I check for what to include?

                          #include "opencv2/core.hpp"
                          #include "opencv2/imgproc.hpp"
                          #include "opencv2/highgui.hpp"
                          #include "opencv2/videoio.hpp"
                          #include <iostream>
                          
                          using namespace cv;
                          using namespace std;
                          
                          void drawText(Mat & image);
                          
                          int main()
                          {
                              cout << "Built with OpenCV " << CV_VERSION << endl;
                              Mat image;
                              VideoCapture capture;
                              capture.open(0);
                              if(capture.isOpened())
                              {
                                  cout << "Capture is opened" << endl;
                                  for(;;)
                                  {
                                      capture >> image;
                                      if(image.empty())
                                          break;
                                      drawText(image);
                                      imshow("Sample", image);
                                      if(waitKey(10) >= 0)
                                          break;
                                  }
                              }
                              else
                              {
                                  cout << "No capture" << endl;
                                  image = Mat::zeros(480, 640, CV_8UC1);
                                  drawText(image);
                                  imshow("Sample", image);
                                  waitKey(0);
                              }
                              return 0;
                          }
                          
                          void drawText(Mat & image)
                          {
                              putText(image, "Hello OpenCV",
                                      Point(20, 50),
                                      FONT_HERSHEY_COMPLEX, 1, // font face and scale
                                      Scalar(255, 255, 255), // white
                                      1, LINE_AA); // line thickness and type
                          }
                          

                          2- Is there any way to include the whole thing in .pro file and then just include required hpp in the cpp file? I do the same thing when using CMake.

                          jsulmJ 1 Reply Last reply
                          0
                          • S saeedBaba

                            @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                            https://docs.opencv.org/3.4/d4/da8/group__imgcodecs.html

                            for example, I get the same error for this code:
                            1- where should I check for what to include?

                            #include "opencv2/core.hpp"
                            #include "opencv2/imgproc.hpp"
                            #include "opencv2/highgui.hpp"
                            #include "opencv2/videoio.hpp"
                            #include <iostream>
                            
                            using namespace cv;
                            using namespace std;
                            
                            void drawText(Mat & image);
                            
                            int main()
                            {
                                cout << "Built with OpenCV " << CV_VERSION << endl;
                                Mat image;
                                VideoCapture capture;
                                capture.open(0);
                                if(capture.isOpened())
                                {
                                    cout << "Capture is opened" << endl;
                                    for(;;)
                                    {
                                        capture >> image;
                                        if(image.empty())
                                            break;
                                        drawText(image);
                                        imshow("Sample", image);
                                        if(waitKey(10) >= 0)
                                            break;
                                    }
                                }
                                else
                                {
                                    cout << "No capture" << endl;
                                    image = Mat::zeros(480, 640, CV_8UC1);
                                    drawText(image);
                                    imshow("Sample", image);
                                    waitKey(0);
                                }
                                return 0;
                            }
                            
                            void drawText(Mat & image)
                            {
                                putText(image, "Hello OpenCV",
                                        Point(20, 50),
                                        FONT_HERSHEY_COMPLEX, 1, // font face and scale
                                        Scalar(255, 255, 255), // white
                                        1, LINE_AA); // line thickness and type
                            }
                            

                            2- Is there any way to include the whole thing in .pro file and then just include required hpp in the cpp file? I do the same thing when using CMake.

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #26

                            @saeedBaba said in Symbols not found for architecture x86_64 MacOS Yosemite:

                            Is there any way to include the whole thing in .pro file

                            You should only link what is really needed. Else you will have to provide libs which are not used by your app making your package unnecessary big.

                            "I get the same error for this code" - if it is the same error, then the solution is also same.
                            But I guess the error is not same? Please post the error.

                            https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              saeedBaba
                              wrote on last edited by saeedBaba
                              #27

                              Log file for the code with videocapture .

                              16:21:02: Running steps for project opencv_test_qmake...
                              16:21:02: Starting: "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" /usr/local/lib/C++Project/Qt6/opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
                              Info: creating stash file /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/.qmake.stash
                              16:21:03: The process "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" exited normally.
                              16:21:03: Starting: "/usr/bin/make" -f /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/Makefile qmake_all
                              make: Nothing to be done for `qmake_all'.
                              16:21:03: The process "/usr/bin/make" exited normally.
                              16:21:03: Starting: "/usr/bin/make" -j8
                              /Users/apple/Qt6/6.1.1/clang_64/libexec/uic ../opencv_test_qmake/dialog.ui -o ui_dialog.h
                              /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o main.o ../opencv_test_qmake/main.cpp
                              /Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -dM -E -o moc_predefs.h /Users/apple/Qt6/6.1.1/clang_64/mkspecs/features/data/dummy.cpp
                              /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o dialog.o ../opencv_test_qmake/dialog.cpp
                              /Users/apple/Qt6/6.1.1/clang_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/moc_predefs.h -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -I/usr/local/lib/C++Project/Qt6/opencv_test_qmake -I/usr/local/include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1 -I/Library/Developer/CommandLineTools/usr/lib/clang/12.0.5/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/usr/include -F/Users/apple/Qt6/6.1.1/clang_64/lib ../opencv_test_qmake/dialog.h -o moc_dialog.cpp
                              /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o moc_dialog.o moc_dialog.cpp
                              /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -lopencv_imgcodecs -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
                              
                              
                              Undefined symbols for architecture x86_64:
                                "cv::VideoCapture::open(int, int)", referenced from:
                                    _main in main.o
                                "cv::VideoCapture::VideoCapture()", referenced from:
                                    _main in main.o
                                "cv::VideoCapture::~VideoCapture()", referenced from:
                                    _main in main.o
                                "cv::VideoCapture::operator>>(cv::Mat&)", referenced from:
                                    _main in main.o
                                "cv::VideoCapture::isOpened() const", referenced from:
                                    _main in main.o
                              ld: symbol(s) not found for architecture x86_64
                              clang: error: linker command failed with exit code 1 (use -v to see invocation)
                              make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
                              16:21:06: The process "/usr/bin/make" exited with code 2.
                              Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
                              When executing step "Make"
                              16:21:06: Elapsed time: 00:04.
                              
                              jsulmJ 1 Reply Last reply
                              0
                              • S saeedBaba

                                Log file for the code with videocapture .

                                16:21:02: Running steps for project opencv_test_qmake...
                                16:21:02: Starting: "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" /usr/local/lib/C++Project/Qt6/opencv_test_qmake/opencv_test_qmake.pro -spec macx-clang CONFIG+=debug CONFIG+=x86_64 CONFIG+=qml_debug
                                Info: creating stash file /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/.qmake.stash
                                16:21:03: The process "/Users/apple/Qt6/6.1.1/clang_64/bin/qmake" exited normally.
                                16:21:03: Starting: "/usr/bin/make" -f /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/Makefile qmake_all
                                make: Nothing to be done for `qmake_all'.
                                16:21:03: The process "/usr/bin/make" exited normally.
                                16:21:03: Starting: "/usr/bin/make" -j8
                                /Users/apple/Qt6/6.1.1/clang_64/libexec/uic ../opencv_test_qmake/dialog.ui -o ui_dialog.h
                                /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o main.o ../opencv_test_qmake/main.cpp
                                /Library/Developer/CommandLineTools/usr/bin/clang++ -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -dM -E -o moc_predefs.h /Users/apple/Qt6/6.1.1/clang_64/mkspecs/features/data/dummy.cpp
                                /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o dialog.o ../opencv_test_qmake/dialog.cpp
                                /Users/apple/Qt6/6.1.1/clang_64/libexec/moc -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include /usr/local/lib/C++Project/Qt6/build-opencv_test_qmake-Desktop_Qt_6_1_1_clang_64bit-Debug/moc_predefs.h -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -I/usr/local/lib/C++Project/Qt6/opencv_test_qmake -I/usr/local/include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1 -I/Library/Developer/CommandLineTools/usr/lib/clang/12.0.5/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/Library/Developer/CommandLineTools/usr/include -F/Users/apple/Qt6/6.1.1/clang_64/lib ../opencv_test_qmake/dialog.h -o moc_dialog.cpp
                                /Library/Developer/CommandLineTools/usr/bin/clang++ -c -pipe -stdlib=libc++ -g -std=gnu++1z  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wall -Wextra -fPIC -DQT_QML_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I../opencv_test_qmake -I. -I../../../../include/opencv4 -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtWidgets.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtGui.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/lib/QtCore.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I. -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/OpenGL.framework/Headers -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/AGL.framework/Headers -I/Users/apple/Qt6/6.1.1/clang_64/mkspecs/macx-clang -F/Users/apple/Qt6/6.1.1/clang_64/lib -o moc_dialog.o moc_dialog.cpp
                                /Library/Developer/CommandLineTools/usr/bin/clang++ -stdlib=libc++ -headerpad_max_install_names  -arch x86_64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mmacosx-version-min=11.0 -Wl,-rpath,@executable_path/../Frameworks -Wl,-rpath,/Users/apple/Qt6/6.1.1/clang_64/lib -o opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake main.o dialog.o moc_dialog.o   -F/Users/apple/Qt6/6.1.1/clang_64/lib -L/usr/local/lib -lopencv_core -lopencv_imgproc -lopencv_features2d -lopencv_highgui -lopencv_calib3d -lopencv_imgcodecs -framework QtWidgets -framework QtGui -framework AppKit -framework ImageIO -framework Metal -framework QtCore -framework DiskArbitration -framework IOKit -framework AGL -framework OpenGL   
                                
                                
                                Undefined symbols for architecture x86_64:
                                  "cv::VideoCapture::open(int, int)", referenced from:
                                      _main in main.o
                                  "cv::VideoCapture::VideoCapture()", referenced from:
                                      _main in main.o
                                  "cv::VideoCapture::~VideoCapture()", referenced from:
                                      _main in main.o
                                  "cv::VideoCapture::operator>>(cv::Mat&)", referenced from:
                                      _main in main.o
                                  "cv::VideoCapture::isOpened() const", referenced from:
                                      _main in main.o
                                ld: symbol(s) not found for architecture x86_64
                                clang: error: linker command failed with exit code 1 (use -v to see invocation)
                                make: *** [opencv_test_qmake.app/Contents/MacOS/opencv_test_qmake] Error 1
                                16:21:06: The process "/usr/bin/make" exited with code 2.
                                Error while building/deploying project opencv_test_qmake (kit: Desktop Qt 6.1.1 clang 64bit)
                                When executing step "Make"
                                16:21:06: Elapsed time: 00:04.
                                
                                jsulmJ Offline
                                jsulmJ Offline
                                jsulm
                                Lifetime Qt Champion
                                wrote on last edited by
                                #28

                                @saeedBaba

                                #include <opencv2/videoio.hpp>
                                

                                So, it is -lopencv_videoio

                                https://forum.qt.io/topic/113070/qt-code-of-conduct

                                1 Reply Last reply
                                1
                                • S Offline
                                  S Offline
                                  saeedBaba
                                  wrote on last edited by
                                  #29

                                  Thanks.

                                  How did you find it?
                                  How should I find future libraries to include?

                                  jsulmJ 1 Reply Last reply
                                  0
                                  • S saeedBaba

                                    Thanks.

                                    How did you find it?
                                    How should I find future libraries to include?

                                    jsulmJ Offline
                                    jsulmJ Offline
                                    jsulm
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #30

                                    @saeedBaba said in Symbols not found for architecture x86_64 MacOS Yosemite:

                                    How did you find it?

                                    From the include file name. This is very OpenCV specific, maybe there is some documentation/explanation in that project.

                                    https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                    0
                                    • S Offline
                                      S Offline
                                      saeedBaba
                                      wrote on last edited by saeedBaba
                                      #31

                                      @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                                      opencv2/videoio.hpp

                                      What I am asking is that, do you just google

                                      opencv2/videoio.hpp
                                      

                                      or there is a documentation link you look into?

                                      jsulmJ 1 Reply Last reply
                                      0
                                      • S saeedBaba

                                        @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                                        opencv2/videoio.hpp

                                        What I am asking is that, do you just google

                                        opencv2/videoio.hpp
                                        

                                        or there is a documentation link you look into?

                                        jsulmJ Offline
                                        jsulmJ Offline
                                        jsulm
                                        Lifetime Qt Champion
                                        wrote on last edited by jsulm
                                        #32

                                        @saeedBaba I googled for cv::VideoCapture and got https://docs.opencv.org/3.4/d8/dfe/classcv_1_1VideoCapture.html where you can see the include:

                                        #include <opencv2/videoio.hpp>
                                        

                                        And in case of OpenCV it looks like a header file corresponds to a lib: videoio.hpp -> opencv_videoio
                                        But this is so in case of OpenCV, not necesserily every lib out there!

                                        Qt does it more clear: it tells you what to add to pro file to use a class. For example in https://doc.qt.io/qt-5/qwidget.html you can see:

                                        QT += widgets
                                        

                                        https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                          saeedBaba
                                          wrote on last edited by
                                          #33

                                          @jsulm said in Symbols not found for architecture x86_64 MacOS Yosemite:

                                          https://docs.opencv.org/3.4/d8/dfe/classcv_1_1VideoCapture.html

                                          but this link does not mention anything about -lopencv_videoio
                                          How did you find that?

                                          jsulmJ 1 Reply Last reply
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