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Can't find libQt5Core lib

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  • R Offline
    R Offline
    r3d9u11
    wrote on last edited by r3d9u11
    #1

    Hello! I have a little trouble with app deployment.
    I have installed Qt5 to /usr/local/qt5 (and it is not added to ldconfig).
    qt5/lib:

    cmake                             libQt5MultimediaGstTools.so
    libQt5AccessibilitySupport.a      libQt5MultimediaGstTools.so.5
    libQt5AccessibilitySupport.la     libQt5MultimediaGstTools.so.5.12
    libQt5AccessibilitySupport.prl    libQt5MultimediaGstTools.so.5.12.0
    libQt5Bootstrap.a                 libQt5MultimediaWidgets.la
    libQt5Bootstrap.la                libQt5MultimediaWidgets.prl
    libQt5Bootstrap.prl               libQt5MultimediaWidgets.so
    libQt5Concurrent.la               libQt5MultimediaWidgets.so.5
    libQt5Concurrent.prl              libQt5MultimediaWidgets.so.5.12
    libQt5Concurrent.so               libQt5MultimediaWidgets.so.5.12.0
    libQt5Concurrent.so.5             libQt5Network.la
    libQt5Concurrent.so.5.12          libQt5Network.prl
    libQt5Concurrent.so.5.12.0        libQt5Network.so
    libQt5Core.la                     libQt5Network.so.5
    libQt5Core.prl                    libQt5Network.so.5.12
    libQt5Core.so                     libQt5Network.so.5.12.0
    libQt5Core.so.5                   libQt5PrintSupport.la
    libQt5Core.so.5.12                libQt5PrintSupport.prl
    libQt5Core.so.5.12.0              libQt5PrintSupport.so
    libQt5DeviceDiscoverySupport.a    libQt5PrintSupport.so.5
    libQt5DeviceDiscoverySupport.la   libQt5PrintSupport.so.5.12
    libQt5DeviceDiscoverySupport.prl  libQt5PrintSupport.so.5.12.0
    libQt5EdidSupport.a               libQt5SerialPort.la
    libQt5EdidSupport.la              libQt5SerialPort.prl
    libQt5EdidSupport.prl             libQt5SerialPort.so
    libQt5EventDispatcherSupport.a    libQt5SerialPort.so.5
    libQt5EventDispatcherSupport.la   libQt5SerialPort.so.5.12
    libQt5EventDispatcherSupport.prl  libQt5SerialPort.so.5.12.0
    libQt5FbSupport.a                 libQt5ServiceSupport.a
    libQt5FbSupport.la                libQt5ServiceSupport.la
    libQt5FbSupport.prl               libQt5ServiceSupport.prl
    libQt5FontDatabaseSupport.a       libQt5Sql.la
    libQt5FontDatabaseSupport.la      libQt5Sql.prl
    libQt5FontDatabaseSupport.prl     libQt5Sql.so
    libQt5Gui.la                      libQt5Sql.so.5
    libQt5Gui.prl                     libQt5Sql.so.5.12
    libQt5Gui.so                      libQt5Sql.so.5.12.0
    libQt5Gui.so.5                    libQt5ThemeSupport.a
    libQt5Gui.so.5.12                 libQt5ThemeSupport.la
    libQt5Gui.so.5.12.0               libQt5ThemeSupport.prl
    libQt5InputSupport.a              libQt5Widgets.la
    libQt5InputSupport.la             libQt5Widgets.prl
    libQt5InputSupport.prl            libQt5Widgets.so
    libQt5Multimedia.la               libQt5Widgets.so.5
    libQt5Multimedia.prl              libQt5Widgets.so.5.12
    libQt5Multimedia.so               libQt5Widgets.so.5.12.0
    libQt5Multimedia.so.5             libqtfreetype.a
    libQt5Multimedia.so.5.12          libqtfreetype.prl
    libQt5Multimedia.so.5.12.0        libqtlibpng.a
    libQt5MultimediaGstTools.la       libqtlibpng.prl
    libQt5MultimediaGstTools.prl      pkgconfig
    

    I'm trying run my own app via script run.sh:

    #!/bin/bash
    LD_LIBRARY_PATH=/usr/local/qt5/lib ./build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp
    

    but I've got exception:

    build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp)
    build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5_PRIVATE_API' not found (required by /usr/local/qt5/lib/libQt5Widgets.so.5)
    build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /usr/local/qt5/lib/libQt5Widgets.so.5)
    build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5_PRIVATE_API' not found (required by /usr/local/qt5/lib/libQt5Gui.so.5)
    build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /usr/local/qt5/lib/libQt5Gui.so.5)
    

    What I'm doing wrong? Any ideas?
    Thanks!

    K 1 Reply Last reply
    0
    • R r3d9u11

      Hello! I have a little trouble with app deployment.
      I have installed Qt5 to /usr/local/qt5 (and it is not added to ldconfig).
      qt5/lib:

      cmake                             libQt5MultimediaGstTools.so
      libQt5AccessibilitySupport.a      libQt5MultimediaGstTools.so.5
      libQt5AccessibilitySupport.la     libQt5MultimediaGstTools.so.5.12
      libQt5AccessibilitySupport.prl    libQt5MultimediaGstTools.so.5.12.0
      libQt5Bootstrap.a                 libQt5MultimediaWidgets.la
      libQt5Bootstrap.la                libQt5MultimediaWidgets.prl
      libQt5Bootstrap.prl               libQt5MultimediaWidgets.so
      libQt5Concurrent.la               libQt5MultimediaWidgets.so.5
      libQt5Concurrent.prl              libQt5MultimediaWidgets.so.5.12
      libQt5Concurrent.so               libQt5MultimediaWidgets.so.5.12.0
      libQt5Concurrent.so.5             libQt5Network.la
      libQt5Concurrent.so.5.12          libQt5Network.prl
      libQt5Concurrent.so.5.12.0        libQt5Network.so
      libQt5Core.la                     libQt5Network.so.5
      libQt5Core.prl                    libQt5Network.so.5.12
      libQt5Core.so                     libQt5Network.so.5.12.0
      libQt5Core.so.5                   libQt5PrintSupport.la
      libQt5Core.so.5.12                libQt5PrintSupport.prl
      libQt5Core.so.5.12.0              libQt5PrintSupport.so
      libQt5DeviceDiscoverySupport.a    libQt5PrintSupport.so.5
      libQt5DeviceDiscoverySupport.la   libQt5PrintSupport.so.5.12
      libQt5DeviceDiscoverySupport.prl  libQt5PrintSupport.so.5.12.0
      libQt5EdidSupport.a               libQt5SerialPort.la
      libQt5EdidSupport.la              libQt5SerialPort.prl
      libQt5EdidSupport.prl             libQt5SerialPort.so
      libQt5EventDispatcherSupport.a    libQt5SerialPort.so.5
      libQt5EventDispatcherSupport.la   libQt5SerialPort.so.5.12
      libQt5EventDispatcherSupport.prl  libQt5SerialPort.so.5.12.0
      libQt5FbSupport.a                 libQt5ServiceSupport.a
      libQt5FbSupport.la                libQt5ServiceSupport.la
      libQt5FbSupport.prl               libQt5ServiceSupport.prl
      libQt5FontDatabaseSupport.a       libQt5Sql.la
      libQt5FontDatabaseSupport.la      libQt5Sql.prl
      libQt5FontDatabaseSupport.prl     libQt5Sql.so
      libQt5Gui.la                      libQt5Sql.so.5
      libQt5Gui.prl                     libQt5Sql.so.5.12
      libQt5Gui.so                      libQt5Sql.so.5.12.0
      libQt5Gui.so.5                    libQt5ThemeSupport.a
      libQt5Gui.so.5.12                 libQt5ThemeSupport.la
      libQt5Gui.so.5.12.0               libQt5ThemeSupport.prl
      libQt5InputSupport.a              libQt5Widgets.la
      libQt5InputSupport.la             libQt5Widgets.prl
      libQt5InputSupport.prl            libQt5Widgets.so
      libQt5Multimedia.la               libQt5Widgets.so.5
      libQt5Multimedia.prl              libQt5Widgets.so.5.12
      libQt5Multimedia.so               libQt5Widgets.so.5.12.0
      libQt5Multimedia.so.5             libqtfreetype.a
      libQt5Multimedia.so.5.12          libqtfreetype.prl
      libQt5Multimedia.so.5.12.0        libqtlibpng.a
      libQt5MultimediaGstTools.la       libqtlibpng.prl
      libQt5MultimediaGstTools.prl      pkgconfig
      

      I'm trying run my own app via script run.sh:

      #!/bin/bash
      LD_LIBRARY_PATH=/usr/local/qt5/lib ./build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp
      

      but I've got exception:

      build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp)
      build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5_PRIVATE_API' not found (required by /usr/local/qt5/lib/libQt5Widgets.so.5)
      build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /usr/local/qt5/lib/libQt5Widgets.so.5)
      build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5_PRIVATE_API' not found (required by /usr/local/qt5/lib/libQt5Gui.so.5)
      build-TestQtWApp-ARM_imx_6-Debug/TestQtWApp: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /usr/local/qt5/lib/libQt5Gui.so.5)
      

      What I'm doing wrong? Any ideas?
      Thanks!

      K Offline
      K Offline
      koahnig
      wrote on last edited by
      #2

      @r3d9u11

      Could it be that you are mixing cross-compiled and desktop libs?
      Or is this on an embedded device?

      Vote the answer(s) that helped you to solve your issue(s)

      R 1 Reply Last reply
      0
      • K koahnig

        @r3d9u11

        Could it be that you are mixing cross-compiled and desktop libs?
        Or is this on an embedded device?

        R Offline
        R Offline
        r3d9u11
        wrote on last edited by r3d9u11
        #3

        @koahnig this in on embedded device.
        Qt libs and Qt App was cross-compiled with arm-linux-gnueabihf
        I removed all qt files from /usr/lib/arm-linux-gnueabihf/ on embedded device and now I've got:

        error while loading shared libraries: libQt5Core.so.5: cannot open shared object file: No such file or directory
        

        I tried to place Qt libraries to the current work directory, I tried to create launcher (like described here http://doc.qt.io/archives/qt-4.8/deployment-x11.html). All without success, libQt5Core can't be found

        Also on I published on the github my script which do a cross-compilation of qtbase.

        1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi,

          Unless you modified the rpath of your application, putting your application dependencies in the same folder won't have any effect. You can use the LD_LIBRARY_PATH environment variable to give additional paths to the loader to search in when starting your application.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          R 1 Reply Last reply
          1
          • SGaistS SGaist

            Hi,

            Unless you modified the rpath of your application, putting your application dependencies in the same folder won't have any effect. You can use the LD_LIBRARY_PATH environment variable to give additional paths to the loader to search in when starting your application.

            R Offline
            R Offline
            r3d9u11
            wrote on last edited by r3d9u11
            #5

            @SGaist thanks for answer. Yes, I did set LD_LIBRARY_PATH to needed value.
            So, I recompiled my application, did copy of needed libs to embedded device and setted LD_LIBRARY_PATH.
            Now I have another exception:

            /ta512/./ta: error while loading shared libraries: /home/imx6/Desktop/qt5120/sysroot/usr/lib/libz.so: cannot open shared object file: No such file or directory
            

            This is path on my host-machine, but not in the current embedded device.
            The path to libz in my embedded device is /ta512/lib/libz.so and it already defined in LD_LIBRARY_PATH.
            Why application remembered a full path to libz from my host-machine and doesn't looks in LD_LIBRARY_PATH?
            (directly my application doen't uses libz, which requires by glib, which requires by Qt)

            1 Reply Last reply
            0
            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              You should run ldd (with LD_LIBRARY_PATH defined) on your application and its dependencies to see where it's currently looking for them.

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

              R 2 Replies Last reply
              0
              • SGaistS SGaist

                You should run ldd (with LD_LIBRARY_PATH defined) on your application and its dependencies to see where it's currently looking for them.

                R Offline
                R Offline
                r3d9u11
                wrote on last edited by r3d9u11
                #7

                @SGaist

                # export LD_LIBRARY_PATH=/ta512/glib:/ta512/qt5lib
                # /ta512/ta   
                /ta512/ta: error while loading shared libraries: /home/imx6/Desktop/qt5120/sysroot/usr/lib/libz.so: cannot open shared object file: No such file or directory
                # ldd /ta512/ta
                /ta512/ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /ta512/ta)
                /ta512/ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5_PRIVATE_API' not found (required by /ta512/qt5lib/libQt5Widgets.so.5)
                /ta512/ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /ta512/qt5lib/libQt5Widgets.so.5)
                /ta512/ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5_PRIVATE_API' not found (required by /ta512/qt5lib/libQt5Gui.so.5)
                /ta512/ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version `Qt_5' not found (required by /ta512/qt5lib/libQt5Gui.so.5)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libicui18n.so.55)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libicui18n.so.55)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libicui18n.so.55)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libicuuc.so.55)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libicuuc.so.55)
                /ta512/ta: /ta512/glib/libstdc++.so.6: no version information available (required by /usr/lib/arm-linux-gnueabihf/libicuuc.so.55)
                /ta512/ta: /lib/arm-linux-gnueabihf/libc.so.6: version `GLIBC_2.28' not found (required by /ta512/glib/libglib-2.0.so.0)
                	linux-vdso.so.1 =>  (0x7ee3e000)
                	libQt5Widgets.so.5 => /ta512/qt5lib/libQt5Widgets.so.5 (0x76a51000)
                	libQt5Gui.so.5 => /ta512/qt5lib/libQt5Gui.so.5 (0x765b0000)
                	libQt5Core.so.5 => /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5 (0x7624b000)
                	libpthread.so.0 => /lib/arm-linux-gnueabihf/libpthread.so.0 (0x76227000)
                	libstdc++.so.6 => /ta512/glib/libstdc++.so.6 (0x760be000)
                	libm.so.6 => /lib/arm-linux-gnueabihf/libm.so.6 (0x76045000)
                	libgcc_s.so.1 => /ta512/glib/libgcc_s.so.1 (0x76016000)
                	libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0x75f2a000)
                	/home/imx6/Desktop/qt5120/sysroot/usr/lib/libz.so => not found
                	libz.so.1 => /ta512/glib/libz.so.1 (0x75efa000)
                	libicui18n.so.55 => /usr/lib/arm-linux-gnueabihf/libicui18n.so.55 (0x75d60000)
                	libicuuc.so.55 => /usr/lib/arm-linux-gnueabihf/libicuuc.so.55 (0x75c42000)
                	libpcre16.so.3 => /usr/lib/arm-linux-gnueabihf/libpcre16.so.3 (0x75bec000)
                	libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0x75bd9000)
                	libglib-2.0.so.0 => /ta512/glib/libglib-2.0.so.0 (0x75a43000)
                	librt.so.1 => /lib/arm-linux-gnueabihf/librt.so.1 (0x75a2c000)
                	/lib/ld-linux-armhf.so.3 (0x54ae3000)
                	libicudata.so.55 => /usr/lib/arm-linux-gnueabihf/libicudata.so.55 (0x74165000)
                
                1 Reply Last reply
                0
                • SGaistS SGaist

                  You should run ldd (with LD_LIBRARY_PATH defined) on your application and its dependencies to see where it's currently looking for them.

                  R Offline
                  R Offline
                  r3d9u11
                  wrote on last edited by r3d9u11
                  #8

                  @SGaist ok, I recompiled qtbase without glib, and now I return to the topic theme:

                  # ls /ta512
                  Makefile         libQt5Widgets.so.5  moc_mainwindow.cpp  ta
                  libQt5Core.so.5  main.o              moc_mainwindow.o    ta.sh
                  libQt5Gui.so.5   mainwindow.o        moc_predefs.h       ui_mainwindow.h
                  

                  and run:

                  # export LD_LIBRARY_PATH=/ta512
                  # ./ta
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5' not found (required by ./ta)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5_PRIVATE_API' not found (required by /ta512/libQt5Widgets.so.5)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5' not found (required by /ta512/libQt5Widgets.so.5)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5_PRIVATE_API' not found (required by /ta512/libQt5Gui.so.5)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5' not found (required by /ta512/libQt5Gui.so.5)
                  # ldd ta
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5' not found (required by ./ta)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5_PRIVATE_API' not found (required by /ta512/libQt5Widgets.so.5)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5' not found (required by /ta512/libQt5Widgets.so.5)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5_PRIVATE_API' not found (required by /ta512/libQt5Gui.so.5)
                  ./ta: /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5: version 'Qt_5' not found (required by /ta512/libQt5Gui.so.5)
                  	linux-vdso.so.1 =>  (0x7ece4000)
                  	libQt5Widgets.so.5 => /ta512/libQt5Widgets.so.5 (0x769e1000)
                  	libQt5Gui.so.5 => /ta512/libQt5Gui.so.5 (0x76540000)
                  	libQt5Core.so.5 => /usr/lib/arm-linux-gnueabihf/libQt5Core.so.5 (0x761db000)
                  	libpthread.so.0 => /lib/arm-linux-gnueabihf/libpthread.so.0 (0x761b7000)
                  	libstdc++.so.6 => /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 (0x760a9000)
                  	libm.so.6 => /lib/arm-linux-gnueabihf/libm.so.6 (0x76031000)
                  	libgcc_s.so.1 => /lib/arm-linux-gnueabihf/libgcc_s.so.1 (0x76008000)
                  	libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0x75f1c000)
                  	libz.so.1 => /lib/arm-linux-gnueabihf/libz.so.1 (0x75efa000)
                  	libicui18n.so.55 => /usr/lib/arm-linux-gnueabihf/libicui18n.so.55 (0x75d61000)
                  	libicuuc.so.55 => /usr/lib/arm-linux-gnueabihf/libicuuc.so.55 (0x75c43000)
                  	libpcre16.so.3 => /usr/lib/arm-linux-gnueabihf/libpcre16.so.3 (0x75bec000)
                  	libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0x75bd9000)
                  	libglib-2.0.so.0 => /lib/arm-linux-gnueabihf/libglib-2.0.so.0 (0x75b01000)
                  	librt.so.1 => /lib/arm-linux-gnueabihf/librt.so.1 (0x75aeb000)
                  	/lib/ld-linux-armhf.so.3 (0x54b87000)
                  	libicudata.so.55 => /usr/lib/arm-linux-gnueabihf/libicudata.so.55 (0x74224000)
                  	libpcre.so.3 => /lib/arm-linux-gnueabihf/libpcre.so.3 (0x741c6000)
                  
                  1 Reply Last reply
                  0
                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #9

                    You are not deploying libQt5Core.so.5 along the other Qt libraries in your ta512 folder.

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                    R 2 Replies Last reply
                    0
                    • SGaistS SGaist

                      You are not deploying libQt5Core.so.5 along the other Qt libraries in your ta512 folder.

                      R Offline
                      R Offline
                      r3d9u11
                      wrote on last edited by r3d9u11
                      #10

                      @SGaist no, I'm deploying only 3 Qt libs in folder /ta512

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                      • SGaistS SGaist

                        You are not deploying libQt5Core.so.5 along the other Qt libraries in your ta512 folder.

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                        r3d9u11
                        wrote on last edited by r3d9u11
                        #11

                        @SGaist ok, I built Qt 5.9.7 with options:

                            -verbose                        \
                            -nomake tests                   \
                            -nomake examples                \
                            -no-use-gold-linker             \
                            -no-opengl                      \
                            -no-dbus                        \
                            -no-glib                        \
                            -no-icu                         \
                            -rpath
                        

                        and the target Qt application on the embedded device did found the Qt libs, but I've got another exception:

                        ./qt_c: /lib/arm-linux-gnueabihf/libc.so.6: version `GLIBC_2.28' not found (required by /ta/libQt5Core.so.5)
                        

                        sure, version of glib on the target device is 2.23, but Qt was configured without GLIB support. Why Qt still require this library?


                        well, as latest results with same cross-compilations process (e.g. same tools, compiler, QtCreator settings, etc):

                        • cross-compiled app with Qt 5.12.0 can't find self Qt libraries
                        • cross-compiled app with Qt 5.9.7 can find self Qt libraries, but can't work without GLIB < v2.28 (even configured without glib support)
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                        • SGaistS Offline
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                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #12

                          And why are you not deploying the Qt5Core library since you already deploy the others ?

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                          • SGaistS SGaist

                            And why are you not deploying the Qt5Core library since you already deploy the others ?

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                            r3d9u11
                            wrote on last edited by
                            #13

                            @SGaist as I told before I did copy Qt libs with application to the target embedded device (as you can see the folder /ta512 already contains all needed Qt libs and executable application), also I did set value of LD_LIBRARY_PATH to /ta512 before application has been started.

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                            • SGaistS Offline
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                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #14

                              That's clear, but from your last test, why only these three libs and not QtCore ?

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                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • SGaistS SGaist

                                That's clear, but from your last test, why only these three libs and not QtCore ?

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                                r3d9u11
                                wrote on last edited by
                                #15

                                @SGaist sorry, maybe I don't understand you question right. Does libQt5Core.so.5 (which was already deployed with application to the target device) is not "Qt5Core library"?

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                                • SGaistS Offline
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                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #16

                                  The question is: since you are deploying 3 Qt libraries already, why not the Qt5Core ?

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                                  • SGaistS SGaist

                                    The question is: since you are deploying 3 Qt libraries already, why not the Qt5Core ?

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                                    r3d9u11
                                    wrote on last edited by r3d9u11
                                    #17

                                    @SGaist Sorry, but what do you mean under "Qt5Core"? "libQt5Core.so" is a "Qt5Core", isn't it?

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                                    • SGaistS Offline
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                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #18

                                      Yes it is.

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                                      • SGaistS SGaist

                                        Yes it is.

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                                        r3d9u11
                                        wrote on last edited by
                                        #19

                                        @SGaist because the target application is looking for the libQt5Core.so.5, not for libQt5Core.so

                                        howewer I'll try to do copy of all aliases: libQt5Core.so, libQt5Core.so.5 and libQt5Core.so.5.12.0

                                        thanks for hint!
                                        and happy New Year ;)

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                                        • SGaistS Offline
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                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #20

                                          If you want to be sure the loader finds the correct library where you put them, then yes, copy all the aliases up to the library itself.

                                          Interested in AI ? www.idiap.ch
                                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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