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Forum Update on Monday, May 27th 2025

Qt6 Widgets Application not working, exit code -1073741511

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  • Christian EhrlicherC Christian Ehrlicher

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

    JonBJ Online
    JonBJ Online
    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/
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      • 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..

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        • 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

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          • 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
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            • 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

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              • 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
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                • 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

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                  • 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
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                    • 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 Online
                      JonBJ Online
                      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.

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                      • 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

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                        • 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

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                          • 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

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