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Could not find procedure entry point _Z9qt_assertPKcS0_i in dynamic link library

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  • C CidGianni

    Hi ChrisW67. Thanks your help. Follows COMPILE OUTPUT and APPLICATION OUTPUT:
    COMPILE OUTPUT
    15:30:55: Starting: "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" -j4
    C:/Qt/Tools/mingw1120_64/bin/mingw32-make -f Makefile.Debug
    mingw32-make[1]: Entering directory 'D:/OneDrive/00-ProjectosQTCreator/build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug'
    mingw32-make[1]: Nothing to be done for 'first'.
    mingw32-make[1]: Leaving directory 'D:/OneDrive/00-ProjectosQTCreator/build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug'
    15:30:57: The process "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" exited normally.
    15:30:57: Elapsed time: 00:02.
    AFTER REBUILD
    include/QtGui -IC:/Qt/6.3.1/mingw_64/include/QtCore -Idebug -I. -I/include -IC:/Qt/6.3.1/mingw_64/mkspecs/win32-g++ -o debug\moc_janela.o debug\moc_janela.cpp
    g++ -Wl,-subsystem,windows -mthreads -o debug\Janela01.exe debug/main.o debug/janela.o debug/moc_janela.o C:\Qt\6.3.1\mingw_64\lib\libQt6Widgets.a C:\Qt\6.3.1\mingw_64\lib\libQt6Gui.a C:\Qt\6.3.1\mingw_64\lib\libQt6Core.a -lmingw32 C:\Qt\6.3.1\mingw_64\lib\libQt6EntryPoint.a -lshell32
    mingw32-make[1]: Leaving directory 'D:/OneDrive/00-ProjectosQTCreator/build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug'
    15:34:21: The process "C:\Qt\Tools\mingw1120_64\bin\mingw32-make.exe" exited normally.
    15:34:21: Elapsed time: 00:22.

    APPLICATION OUTPUT
    15:30:58: Starting D:\OneDrive\00-ProjectosQTCreator\build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug\debug\Janela01.exe...
    15:31:03: D:\OneDrive\00-ProjectosQTCreator\build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug\debug\Janela01.exe crashed.

    15:36:35: Starting D:\OneDrive\00-ProjectosQTCreator\build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug\debug\Janela01.exe...
    15:36:49: D:\OneDrive\00-ProjectosQTCreator\build-Janela01-Desktop_Qt_6_3_1_MinGW_64_bit-Debug\debug\Janela01.exe crashed.

    C Offline
    C Offline
    ChrisW67
    wrote on last edited by
    #12

    @CidGianni said in Could not find procedure entry point _Z9qt_assertPKcS0_i in dynamic link library:

    Hi ChrisW67. Thanks your help. Follows COMPILE OUTPUT and APPLICATION OUTPUT:

    Thanks. I stand corrected, your program is compiling, linking, and then failing at run time. Mismatched DLLs, as @hskoglund is chasing, is the most likely cause.

    C 1 Reply Last reply
    0
    • hskoglundH hskoglund

      Hi, the .dlls in the folder r C:\Qt\Tools\QtCreator\bin are meant to be used exclusively by Qt Creator. They usually are built with MSVC 2019, not with MingGW, and that could explain the error with the missing procedure entry point.

      If you remove all Qt6Core.dll that you've copied, so that only 2 remains:
      one in C:\Qt\6.3.1\mingw_64\bin and one in C:\Qt\Tools\QtCreator\bin (and they should have different sizes and dates) do you still get the same error when trying to build an app from Qt's Examples?

      C Offline
      C Offline
      CidGianni
      wrote on last edited by
      #13

      @hskoglund Yes. I still get the same error when trying to build an app from Qt's. And dll there are only in two folders: C:\Qt\6.3.1\mingw_64\bin and C:\Qt\Tools\QtCreator\bin, and the have different sizes and dates too. I don't understand why they are different.

      1 Reply Last reply
      0
      • C ChrisW67

        @CidGianni said in Could not find procedure entry point _Z9qt_assertPKcS0_i in dynamic link library:

        Hi ChrisW67. Thanks your help. Follows COMPILE OUTPUT and APPLICATION OUTPUT:

        Thanks. I stand corrected, your program is compiling, linking, and then failing at run time. Mismatched DLLs, as @hskoglund is chasing, is the most likely cause.

        C Offline
        C Offline
        CidGianni
        wrote on last edited by
        #14

        @ChrisW67 said in Could not find procedure entry point _Z9qt_assertPKcS0_i in dynamic link library:

        Thanks. I stand corrected, your program is compiling, linking, and then failing at run time. Mismatched DLLs, as @hskoglund is chasing, is the most likely cause.

        Hi @ChrisW67 thanks. Do you have any suggestion? Thanks again.

        JonBJ 1 Reply Last reply
        0
        • C CidGianni

          @ChrisW67 said in Could not find procedure entry point _Z9qt_assertPKcS0_i in dynamic link library:

          Thanks. I stand corrected, your program is compiling, linking, and then failing at run time. Mismatched DLLs, as @hskoglund is chasing, is the most likely cause.

          Hi @ChrisW67 thanks. Do you have any suggestion? Thanks again.

          JonBJ Offline
          JonBJ Offline
          JonB
          wrote on last edited by
          #15

          @CidGianni
          It seems likely/possible your program is finding DLLs from C:\Qt\Tools\QtCreator\bin at runtime when you need it to only find files from/look in C:\Qt\6.3.1\mingw_64\bin. They are not the same because the QtCreator ones are only for use by QtCreator.

          I copy Qt6Gui.dll and Qt6Core.dll to windows\system32. Today i remove from windows\system32. Now the message is:
          DLL are in folder C:\Qt\Tools\QtCreator\bin

          Don't do such a thing if you do not know what you doing. It sounds like you have copied the wrong files. If you must do this yourself at all manually, I assume the ones in C:\Qt\6.3.1\mingw_64\bin would be the correct ones.

          You should understand the difference between Qt Creator files, which are just for it to use, versus the Qt files your application uses.

          1 Reply Last reply
          0
          • hskoglundH Online
            hskoglundH Online
            hskoglund
            wrote on last edited by
            #16

            Hi, in addtion to what @JonB says:
            Try not using OneDrive for storing your projects, instead create a directory somewhere on your C: drive.
            To avoid the mixup/collision with Qt dlls, try installing a Qt5 version of MinGW, for example 5.15.2 and see if you get the same error when launching the 5.15.2 version of your app.

            C 1 Reply Last reply
            1
            • hskoglundH hskoglund

              Hi, in addtion to what @JonB says:
              Try not using OneDrive for storing your projects, instead create a directory somewhere on your C: drive.
              To avoid the mixup/collision with Qt dlls, try installing a Qt5 version of MinGW, for example 5.15.2 and see if you get the same error when launching the 5.15.2 version of your app.

              C Offline
              C Offline
              CidGianni
              wrote on last edited by
              #17

              @hskoglund Thanks. I make test saving project in d:\QTProject, but not solve de problems. Now i uninstall QT 7.0.2 and I will try an old version.

              1 Reply Last reply
              0
              • C Offline
                C Offline
                ChrisW67
                wrote on last edited by
                #18

                Ensure that neither the installer nor your good self is adding C:\Qt\Tools\QtCreator\bin to the system PATH.

                C 1 Reply Last reply
                2
                • C ChrisW67

                  Ensure that neither the installer nor your good self is adding C:\Qt\Tools\QtCreator\bin to the system PATH.

                  C Offline
                  C Offline
                  CidGianni
                  wrote on last edited by
                  #19

                  @ChrisW67 Thanks.

                  1 Reply Last reply
                  0
                  • G Offline
                    G Offline
                    Grigg_23
                    wrote on last edited by jsulm
                    #20

                    I have solved my issue by installing the DLL File.

                    jsulmJ 1 Reply Last reply
                    0
                    • G Grigg_23

                      I have solved my issue by installing the DLL File.

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #21

                      @Grigg_23 I removed your link. Downloading and installing some DLLs from some dubious locations is not a good suggestion. I also have the impression that you post was a spam post.

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

                      1 Reply Last reply
                      1
                      • C CidGianni

                        Installed QT Creator 7.0.2 Windows 10 environment..
                        After installation, I created a project type Application(Qt) - Qt Widgets Application -Empty window. Build qmake.
                        After compiling, when running it shows the error below:
                        Could not find procedure entry point _Z9qt_assertPKcS0_i in dynamic link library.
                        I need help. Thanks.

                        K Offline
                        K Offline
                        Kolbeinn
                        wrote on last edited by
                        #22

                        @CidGianni I know i'm late and you probably fixed it or have moved on, but you might have used the wrong compiler, using QT 6.7.0 (MSVC) would enter that meesage on a mingw program. You have to use QT 6.7.0 (MINGW) application to compile it, then it works!

                        1 Reply Last reply
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