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  4. Qt6 Widgets Application not working, exit code -1073741511

Qt6 Widgets Application not working, exit code -1073741511

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  • H HQ2000

    @Christian-Ehrlicher you're right, it's done here
    @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

     foreach (QT_LIB Core Gui Widgets)
             add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
                     COMMAND ${CMAKE_COMMAND} -E copy
                     "${QT_INSTALL_PATH}/bin/Qt6${QT_LIB}${DEBUG_SUFFIX}.dll"
                     "$<TARGET_FILE_DIR:${PROJECT_NAME}>")
      endforeach (QT_LIB)
    
    JonBJ Offline
    JonBJ Offline
    JonB
    wrote last edited by
    #20

    @HQ2000
    So purely OOI could you comment on why that foreach has not copied Qt6Gui.dll as I asked earlier? However you say you know it works without that, somehow.

    Confirm you are not building your project for debug?

    Remove everything on your PATH environment variable so we know it is not picking something up somewhere?

    Christian EhrlicherC 1 Reply Last reply
    0
    • Christian EhrlicherC Offline
      Christian EhrlicherC Offline
      Christian Ehrlicher
      Lifetime Qt Champion
      wrote last edited by
      #21

      Don't do this. Adjust your PATH env var accordingly and use windeployqt when you want to deploy your app. Your are missing dll and plugins

      Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
      Visit the Qt Academy at https://academy.qt.io/catalog

      1 Reply Last reply
      1
      • JonBJ JonB

        @HQ2000
        So purely OOI could you comment on why that foreach has not copied Qt6Gui.dll as I asked earlier? However you say you know it works without that, somehow.

        Confirm you are not building your project for debug?

        Remove everything on your PATH environment variable so we know it is not picking something up somewhere?

        Christian EhrlicherC Offline
        Christian EhrlicherC Offline
        Christian Ehrlicher
        Lifetime Qt Champion
        wrote last edited by Christian Ehrlicher
        #22

        @JonB copying dlls around manually is wrong. The PATH env var has to be adjusted.

        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
        Visit the Qt Academy at https://academy.qt.io/catalog

        JonBJ 1 Reply Last reply
        1
        • Christian EhrlicherC Christian Ehrlicher

          @JonB copying dlls around manually is wrong. The PATH env var has to be adjusted.

          JonBJ Offline
          JonBJ Offline
          JonB
          wrote last edited by
          #23

          @Christian-Ehrlicher
          ? Of course, I know! I was just trying to diagnose where the OP's problem might lie, given what is in the makefile. I posted before your post.

          Christian EhrlicherC 1 Reply Last reply
          0
          • JonBJ JonB

            @Christian-Ehrlicher
            ? Of course, I know! I was just trying to diagnose where the OP's problem might lie, given what is in the makefile. I posted before your post.

            Christian EhrlicherC Offline
            Christian EhrlicherC Offline
            Christian Ehrlicher
            Lifetime Qt Champion
            wrote last edited by
            #24

            @JonB said in Qt6 Widgets Application not working, exit code -1073741511:

            where the OP's problem might lie,

            The problem is, that he is copying only half of the required stuff because he is doing some strang stuff manually for no reason.

            Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
            Visit the Qt Academy at https://academy.qt.io/catalog

            H 1 Reply Last reply
            1
            • Christian EhrlicherC Christian Ehrlicher

              @JonB said in Qt6 Widgets Application not working, exit code -1073741511:

              where the OP's problem might lie,

              The problem is, that he is copying only half of the required stuff because he is doing some strang stuff manually for no reason.

              H Offline
              H Offline
              HQ2000
              wrote last edited by HQ2000
              #25

              @Christian-Ehrlicher so, what else should I get you? Also, the whole CMakeLists.txt file is standard in CLion. I did not write this.
              Yes, I did some things manually on purpose. Private data..

              1 Reply Last reply
              0
              • Christian EhrlicherC Offline
                Christian EhrlicherC Offline
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote last edited by
                #26

                As I already wrote - don't copy stuff around as it's wrong as it's missing things. Adjust your PATH var accordingly so that the Qt libs are properly found.

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

                H 1 Reply Last reply
                0
                • Christian EhrlicherC Christian Ehrlicher

                  As I already wrote - don't copy stuff around as it's wrong as it's missing things. Adjust your PATH var accordingly so that the Qt libs are properly found.

                  H Offline
                  H Offline
                  HQ2000
                  wrote last edited by
                  #27

                  @Christian-Ehrlicher
                  You mean I should just add their absolute paths to the PATH var?

                  Christian EhrlicherC 1 Reply Last reply
                  0
                  • H HQ2000

                    @Christian-Ehrlicher
                    You mean I should just add their absolute paths to the PATH var?

                    Christian EhrlicherC Offline
                    Christian EhrlicherC Offline
                    Christian Ehrlicher
                    Lifetime Qt Champion
                    wrote last edited by
                    #28

                    @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                    You mean I should just add their absolute paths to the PATH var?

                    Again: add the path to the Qt dlls to the PATH env var.

                    Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                    Visit the Qt Academy at https://academy.qt.io/catalog

                    H 1 Reply Last reply
                    0
                    • Christian EhrlicherC Christian Ehrlicher

                      @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                      You mean I should just add their absolute paths to the PATH var?

                      Again: add the path to the Qt dlls to the PATH env var.

                      H Offline
                      H Offline
                      HQ2000
                      wrote last edited by HQ2000
                      #29

                      @Christian-Ehrlicher
                      Did it, nothing changed. (I restarted the project, of course)
                      Same with deleting the associated environment vars

                      @JonB
                      It did. But it is not needed, I viewed it in the Dependency Walker

                      Christian EhrlicherC 1 Reply Last reply
                      0
                      • H HQ2000

                        @Christian-Ehrlicher
                        Did it, nothing changed. (I restarted the project, of course)
                        Same with deleting the associated environment vars

                        @JonB
                        It did. But it is not needed, I viewed it in the Dependency Walker

                        Christian EhrlicherC Offline
                        Christian EhrlicherC Offline
                        Christian Ehrlicher
                        Lifetime Qt Champion
                        wrote last edited by
                        #30

                        @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                        Same with deleting the associated environment vars

                        Then you would get an error about missing dlls. You have some wrong dlls around somewhere.
                        Delete all dlls you copied around, don't copy dlls around in your CMakeLists.txt or anywhere else during your build, use a clean build dir, set the env var accordingly and start it from the command line where you also started the dependency tools from...

                        Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                        Visit the Qt Academy at https://academy.qt.io/catalog

                        H 1 Reply Last reply
                        1
                        • Christian EhrlicherC Christian Ehrlicher

                          @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                          Same with deleting the associated environment vars

                          Then you would get an error about missing dlls. You have some wrong dlls around somewhere.
                          Delete all dlls you copied around, don't copy dlls around in your CMakeLists.txt or anywhere else during your build, use a clean build dir, set the env var accordingly and start it from the command line where you also started the dependency tools from...

                          H Offline
                          H Offline
                          HQ2000
                          wrote last edited by HQ2000
                          #31

                          @Christian-Ehrlicher
                          I did not copy around any DLLs, this is a clean build dir (CLion pre-config)
                          I will try it.

                          Added the env vars:
                          Screenshot 2025-05-02 183208.png

                          Still get the Error messages that exactly these ones are missing...

                          JonBJ Christian EhrlicherC 2 Replies Last reply
                          0
                          • H HQ2000

                            @Christian-Ehrlicher
                            I did not copy around any DLLs, this is a clean build dir (CLion pre-config)
                            I will try it.

                            Added the env vars:
                            Screenshot 2025-05-02 183208.png

                            Still get the Error messages that exactly these ones are missing...

                            JonBJ Offline
                            JonBJ Offline
                            JonB
                            wrote last edited by JonB
                            #32

                            @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                            Added the env vars:

                            You write that followed by a list of DLLs. What do you mean you did to what environment variable? Also you no longer list the Qt DLLs?

                            Still get the Error messages that exactly these ones are missing...

                            If you mean the 4 in that list are reported missing then you have not set your PATH correctly.

                            I am lost.

                            1 Reply Last reply
                            0
                            • H HQ2000

                              @Christian-Ehrlicher
                              I did not copy around any DLLs, this is a clean build dir (CLion pre-config)
                              I will try it.

                              Added the env vars:
                              Screenshot 2025-05-02 183208.png

                              Still get the Error messages that exactly these ones are missing...

                              Christian EhrlicherC Offline
                              Christian EhrlicherC Offline
                              Christian Ehrlicher
                              Lifetime Qt Champion
                              wrote last edited by Christian Ehrlicher
                              #33

                              @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                              Added the env vars:

                              Why do you add some dlls? Please do what we tell you... otherwise we can't (and won't) help anymore.
                              What's so hard to understand? Add the path to your Qt dlls to your PATH environment variable...

                              Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                              Visit the Qt Academy at https://academy.qt.io/catalog

                              H 1 Reply Last reply
                              0
                              • Christian EhrlicherC Christian Ehrlicher

                                @HQ2000 said in Qt6 Widgets Application not working, exit code -1073741511:

                                Added the env vars:

                                Why do you add some dlls? Please do what we tell you... otherwise we can't (and won't) help anymore.
                                What's so hard to understand? Add the path to your Qt dlls to your PATH environment variable...

                                H Offline
                                H Offline
                                HQ2000
                                wrote last edited by HQ2000
                                #34

                                @Christian-Ehrlicher that's what i did..sorry I expressed it wrong
                                @JonB path var sorry, I don't list them because it does not show the error "xy.dll not found", I DID set them correctly, I copied their paths through the explorer

                                1 Reply Last reply
                                0
                                • H Offline
                                  H Offline
                                  HQ2000
                                  wrote last edited by
                                  #35

                                  Sorry for all the inconvinience, I will try to express more exactly to avoid this kind of misunderstanding

                                  1 Reply Last reply
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