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Error "The procedure entry point CreateEvent could not be located" during installation of Qt C++ application on Windows 10

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  • hskoglundH hskoglund

    But the screenshot you posted at the top ("... - Entry Point Not Found.... "), also looks very much as a screenshot from a Windows 7 desktop :-)

    JonBJ Offline
    JonBJ Offline
    JonB
    wrote on last edited by JonB
    #16

    @hskoglund said in Error "The procedure entry point CreateEvent could not be located" during installation of Qt C++ application on Windows 10:

    also looks very much as a screenshot from a Windows 7 desktop :-)

    That's an interesting observation :)

    @Tusharn
    It might be really helpful if you can find a another machine to try installing on. If you have access to a different Windows 10 and/or 11 (preferably not upgraded from 7!) I would try on those. We need to establish whether it's just the current target machine which has the issue.

    Also did you ever try @ChrisW67's sfc /scannow?

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    • hskoglundH Offline
      hskoglundH Offline
      hskoglund
      wrote on last edited by hskoglund
      #17

      Another indication that the screenshot is from a Windows 7 PC: that error dialog "... - Entry Point Not Found" still gave you information about which .dll that failed to export that symbol (i.e. api-ms-win-core-synch-l1-2-0.dll)

      But Windows 10 (and Windows 11 etc.) instead, for the same error, states which file (usually an .exe) that failed to import the symbol. So if this really was a Windows 10 desktop, the error message should have been:
      "The procedure entry point CreateEventW could not be located in the dynamic link library Elab_license_otp.exe"

      BTW: I think this is regression since it still says: "dynamic link library" :-(

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      • JonBJ JonB

        @hskoglund said in Error "The procedure entry point CreateEvent could not be located" during installation of Qt C++ application on Windows 10:

        also looks very much as a screenshot from a Windows 7 desktop :-)

        That's an interesting observation :)

        @Tusharn
        It might be really helpful if you can find a another machine to try installing on. If you have access to a different Windows 10 and/or 11 (preferably not upgraded from 7!) I would try on those. We need to establish whether it's just the current target machine which has the issue.

        Also did you ever try @ChrisW67's sfc /scannow?

        T Offline
        T Offline
        Tusharn
        wrote on last edited by
        #18

        @JonB yes sir i tried sfc/scannow .

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        • hskoglundH hskoglund

          Another indication that the screenshot is from a Windows 7 PC: that error dialog "... - Entry Point Not Found" still gave you information about which .dll that failed to export that symbol (i.e. api-ms-win-core-synch-l1-2-0.dll)

          But Windows 10 (and Windows 11 etc.) instead, for the same error, states which file (usually an .exe) that failed to import the symbol. So if this really was a Windows 10 desktop, the error message should have been:
          "The procedure entry point CreateEventW could not be located in the dynamic link library Elab_license_otp.exe"

          BTW: I think this is regression since it still says: "dynamic link library" :-(

          T Offline
          T Offline
          Tusharn
          wrote on last edited by
          #19

          @hskoglund Yes sir i installed the application on windows 7 and after installation i got this error when i run the application and also i did it on windows 10 but getting same error.

          JonBJ 1 Reply Last reply
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          • hskoglundH Offline
            hskoglundH Offline
            hskoglund
            wrote on last edited by
            #20

            Could you post a screenshot of that error from the Windows 10 PC?

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            • hskoglundH hskoglund

              Could you post a screenshot of that error from the Windows 10 PC?

              T Offline
              T Offline
              Tusharn
              wrote on last edited by
              #21

              @hskoglund No sir i will post

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              • T Tusharn

                @hskoglund Yes sir i installed the application on windows 7 and after installation i got this error when i run the application and also i did it on windows 10 but getting same error.

                JonBJ Offline
                JonBJ Offline
                JonB
                wrote on last edited by
                #22

                @Tusharn said in Error "The procedure entry point CreateEvent could not be located" during installation of Qt C++ application on Windows 10:

                @hskoglund Yes sir i installed the application on windows 7 and after installation i got this error when i run the application and also i did it on windows 10 but getting same error.

                I no longer understand. Your first post states "during the installation process on the target Windows 10 machine", your screenshot (according to @hskoglund) shows Windows 7, and now you seem to say you did install on Windows 7 after all. It is difficult to be sure what you are saying.

                At this point you need to:

                • Write the absolute minimal Qt program, 10 lines long.
                • Build for Release.
                • Use windeployqt to create an installable image.
                • Install on a Windows 10+ machine, preferably one which has not been upgraded from Windows 7.
                • And if possible install on more than one machine, to rule out something on that machine being the issue.

                You can see that people are running out of useful ideas to help. You can Google for

                The procedure entry point CreateEventW could not be located in the dynamic link library api-ms-win-core-synch-l1-2-0.dll

                as I have done, there are a couple of hits.

                If your development machine runs the same Windows version as the one with that error you could find where api-ms-win-core-synch-l1-2-0.dll is on both machines, compare the date/size/versions of those two, run Dependencies on both to see if the "bad" one is missing dependency.

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                • JonBJ JonB

                  @Tusharn said in Error "The procedure entry point CreateEvent could not be located" during installation of Qt C++ application on Windows 10:

                  @hskoglund Yes sir i installed the application on windows 7 and after installation i got this error when i run the application and also i did it on windows 10 but getting same error.

                  I no longer understand. Your first post states "during the installation process on the target Windows 10 machine", your screenshot (according to @hskoglund) shows Windows 7, and now you seem to say you did install on Windows 7 after all. It is difficult to be sure what you are saying.

                  At this point you need to:

                  • Write the absolute minimal Qt program, 10 lines long.
                  • Build for Release.
                  • Use windeployqt to create an installable image.
                  • Install on a Windows 10+ machine, preferably one which has not been upgraded from Windows 7.
                  • And if possible install on more than one machine, to rule out something on that machine being the issue.

                  You can see that people are running out of useful ideas to help. You can Google for

                  The procedure entry point CreateEventW could not be located in the dynamic link library api-ms-win-core-synch-l1-2-0.dll

                  as I have done, there are a couple of hits.

                  If your development machine runs the same Windows version as the one with that error you could find where api-ms-win-core-synch-l1-2-0.dll is on both machines, compare the date/size/versions of those two, run Dependencies on both to see if the "bad" one is missing dependency.

                  T Offline
                  T Offline
                  Tusharn
                  wrote on last edited by
                  #23

                  @JonB Thanks sir i will try as you said

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                  • hskoglundH hskoglund

                    Could you post a screenshot of that error from the Windows 10 PC?

                    T Offline
                    T Offline
                    Tusharn
                    wrote on last edited by
                    #24

                    @hskoglund
                    Hello
                    As you said PF screenshot of error getting on windows 10 pc , where as file mention in error is available in directory.

                    90ae0e39-fce9-4509-9b4f-099bbe5cb229-image.png

                    JonBJ 1 Reply Last reply
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                    • T Tusharn

                      @hskoglund
                      Hello
                      As you said PF screenshot of error getting on windows 10 pc , where as file mention in error is available in directory.

                      90ae0e39-fce9-4509-9b4f-099bbe5cb229-image.png

                      JonBJ Offline
                      JonBJ Offline
                      JonB
                      wrote on last edited by JonB
                      #25

                      @Tusharn
                      While it is true that I cannot spot why you get this error message given the directory's contents, this is a quite different error message from the one you said you get, you show at the top and we have been discussing throughout this topic. Why are you now getting a different message if you said Win 10 gave you the original message? Is this a different Win 10 machine from the one you said produced the first error? It is difficult to help when you report one thing and then show something different.....

                      It is possible that you could get the latest error message if the named DLL is missing one of its dependencies. You might like to load up the Windows Dependencies tool to examine this.

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                      • hskoglundH Offline
                        hskoglundH Offline
                        hskoglund
                        wrote on last edited by
                        #26

                        Hi, just guessing but that missing dll error can occur if your app for example starts a printout and that Windows 10 PC has a older (perhaps not Qt) installation of MinGW that lacks libgcc_s_seh-1.dll and that other MinGW is in ithe path environment variable.

                        To check, try building a simple app, say the Calculator Example using your MinGW 6.5.1. Then use the same windeployqt procedure you did for Elab_license_otp.exe and try the Calculator app on that Windows 10 PC.

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                        • hskoglundH hskoglund

                          Hi, just guessing but that missing dll error can occur if your app for example starts a printout and that Windows 10 PC has a older (perhaps not Qt) installation of MinGW that lacks libgcc_s_seh-1.dll and that other MinGW is in ithe path environment variable.

                          To check, try building a simple app, say the Calculator Example using your MinGW 6.5.1. Then use the same windeployqt procedure you did for Elab_license_otp.exe and try the Calculator app on that Windows 10 PC.

                          T Offline
                          T Offline
                          Tusharn
                          wrote on last edited by
                          #27

                          @hskoglund now i am run application on windows 7 & 10. I tried as you said but getting same error.

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                          • hskoglundH Offline
                            hskoglundH Offline
                            hskoglund
                            wrote on last edited by
                            #28

                            If you try the same Calculator example app again, but this time built with Qt 6.4.3 MSVC2019, do you get the same error?

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                            • M Offline
                              M Offline
                              MaxKozak
                              wrote on last edited by
                              #29

                              I wrote application on windows 11 and find way to deploy it correctly, but on windows 7 this app doesn’t work and go to same error as yours. I try to reinstall dlls, sfc /scan, Visual Redistributable but still nothing. I try this app on windows 10 if it works

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                              • hskoglundH Offline
                                hskoglundH Offline
                                hskoglund
                                wrote on last edited by
                                #30

                                Qt 6.4.3 MSVC 2019 or Qt 6.5.1 MinGW do not support deploying to Windows 7 :-(
                                Qt6 requirements here

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                                • T Offline
                                  T Offline
                                  Tusharn
                                  wrote on last edited by
                                  #31

                                  Anyone tell me which version of qt creator is stable for windows or suitable for windows 10

                                  JonBJ 1 Reply Last reply
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                                  • T Tusharn

                                    Anyone tell me which version of qt creator is stable for windows or suitable for windows 10

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

                                    @Tusharn
                                    Are you really asking about Qt Creator version here? Do you understand that it is the Qt version, nothing to do with Creator, which determines whether your application will or won't run under Windows 7, 10 or whatever? So far as I know any version of Creator will run under Windows 10.

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                                    • T Offline
                                      T Offline
                                      Tusharn
                                      wrote on last edited by
                                      #33

                                      Thanks to all for support and your valuable suggestions.
                                      I am successfully made executable file using (Qt creator 5.9.5) compiler version (Mingw 5.3.0) using windeployqt.

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