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Qt Creator 4.9.1 does not start on Windows 10

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  • chrizbeeC chrizbee

    Small update:
    When I start Qt Creator it does not open at all, but it does create the following folders on my main drive:

    • clangbackend-sZLsZL
    • clang-uiheader-sZLsZL

    Those folders seem to have a different letter combination everytime I start Qt Creator.
    Any clues on that?

    clangfolders

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #5

    @chrizbee Probably temporary folders, not deleted because QtCreator crashes.

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

    chrizbeeC 1 Reply Last reply
    0
    • jsulmJ jsulm

      @chrizbee Probably temporary folders, not deleted because QtCreator crashes.

      chrizbeeC Offline
      chrizbeeC Offline
      chrizbee
      wrote on last edited by
      #6

      @jsulm But the GDB log should give a hint as to where it crashes, right? Any ideas on that?

      jsulmJ 1 Reply Last reply
      0
      • chrizbeeC chrizbee

        @jsulm But the GDB log should give a hint as to where it crashes, right? Any ideas on that?

        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #7

        @chrizbee Try to start QtCreator from a terminal with "-noload all" parameter. It disables all plugins. If it works then you can try to disable one plug-in after another to see which one causes troubles, like "-noload Welcome".

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

        chrizbeeC 1 Reply Last reply
        1
        • jsulmJ jsulm

          @chrizbee Try to start QtCreator from a terminal with "-noload all" parameter. It disables all plugins. If it works then you can try to disable one plug-in after another to see which one causes troubles, like "-noload Welcome".

          chrizbeeC Offline
          chrizbeeC Offline
          chrizbee
          wrote on last edited by chrizbee
          #8

          @jsulm
          Following works (did I miss any plugins?):

          qtcreator -noload all -load Core -load Debugger -load Git -load ProjectExplorer -load QmlDesigner -load Welcome
          

          While this still doesn't:

          qtcreator
          

          EDIT:
          Okay, I've tested all plugins that are listed in "--help" (perfprofiler plugin is not?)

          What works:

          qtcreator -noload Debugger
          qtcreator -noload ProjectExplorer
          

          What does not work:

          qtcreator -noload Git
          qtcreator -noload QmlDesigner
          qtcreator -noload Welcome
          
          jsulmJ 1 Reply Last reply
          0
          • chrizbeeC chrizbee

            @jsulm
            Following works (did I miss any plugins?):

            qtcreator -noload all -load Core -load Debugger -load Git -load ProjectExplorer -load QmlDesigner -load Welcome
            

            While this still doesn't:

            qtcreator
            

            EDIT:
            Okay, I've tested all plugins that are listed in "--help" (perfprofiler plugin is not?)

            What works:

            qtcreator -noload Debugger
            qtcreator -noload ProjectExplorer
            

            What does not work:

            qtcreator -noload Git
            qtcreator -noload QmlDesigner
            qtcreator -noload Welcome
            
            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #9

            @chrizbee From the GDB log it is perfprofiler plug-in

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

            chrizbeeC 1 Reply Last reply
            0
            • chrizbeeC Offline
              chrizbeeC Offline
              chrizbee
              wrote on last edited by
              #10

              Another Update:
              I've just completely uninstalled Qt 5.13.0 and installed Qt 5.12.4 using the offline installer.
              Same result (as expected, since both are using Qt Creator 4.9.1).

              1 Reply Last reply
              0
              • hskoglundH Online
                hskoglundH Online
                hskoglund
                wrote on last edited by
                #11

                Hi, just guessing but maybe your temp environment variables have a bad setting, to check, open a CMD window and type:

                echo %TEMP%
                echo %TMP%
                
                chrizbeeC 1 Reply Last reply
                0
                • hskoglundH hskoglund

                  Hi, just guessing but maybe your temp environment variables have a bad setting, to check, open a CMD window and type:

                  echo %TEMP%
                  echo %TMP%
                  
                  chrizbeeC Offline
                  chrizbeeC Offline
                  chrizbee
                  wrote on last edited by chrizbee
                  #12

                  @hskoglund
                  Should be fine.

                  λ echo %TEMP%
                  C:\Users\chrba\AppData\Local\Temp
                  
                  λ echo %TMP%
                  C:\Users\chrba\AppData\Local\Temp
                  

                  But I'm guessing too, that there's some "bad settings" stored somewhere which I didn't delete yet.
                  Because it was working before...

                  1 Reply Last reply
                  0
                  • hskoglundH Online
                    hskoglundH Online
                    hskoglund
                    wrote on last edited by
                    #13

                    Also, what you can try: create another, new user. Switch to that user and start Qt Creator.

                    chrizbeeC 1 Reply Last reply
                    1
                    • chrizbeeC Offline
                      chrizbeeC Offline
                      chrizbee
                      wrote on last edited by
                      #14

                      Qt 5.9.8 offline installer with Qt Creator 4.8.2 works flawlessly.

                      1 Reply Last reply
                      0
                      • hskoglundH hskoglund

                        Also, what you can try: create another, new user. Switch to that user and start Qt Creator.

                        chrizbeeC Offline
                        chrizbeeC Offline
                        chrizbee
                        wrote on last edited by chrizbee
                        #15

                        @hskoglund I can start Qt Creator from another user without any problems.
                        But what are the differences related to Qt Creator?
                        Environment variables? Registry entries?
                        Why would it work for the new user and not for my default one?

                        jsulmJ 1 Reply Last reply
                        0
                        • chrizbeeC chrizbee

                          @hskoglund I can start Qt Creator from another user without any problems.
                          But what are the differences related to Qt Creator?
                          Environment variables? Registry entries?
                          Why would it work for the new user and not for my default one?

                          jsulmJ Offline
                          jsulmJ Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on last edited by
                          #16

                          @chrizbee said in Qt Creator 4.9.1 does not start on Windows 10:

                          Environment variables? Registry entries?
                          Why would it work for the new user and not for my default one?

                          Because there is probably something broken (like environment variables, registry, entries in the file system,...)

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

                          aha_1980A 1 Reply Last reply
                          1
                          • jsulmJ jsulm

                            @chrizbee said in Qt Creator 4.9.1 does not start on Windows 10:

                            Environment variables? Registry entries?
                            Why would it work for the new user and not for my default one?

                            Because there is probably something broken (like environment variables, registry, entries in the file system,...)

                            aha_1980A Offline
                            aha_1980A Offline
                            aha_1980
                            Lifetime Qt Champion
                            wrote on last edited by
                            #17

                            @jsulm And given it works with 4.8, probably some new setting introduced in 4.9...

                            Qt has to stay free or it will die.

                            1 Reply Last reply
                            0
                            • jsulmJ jsulm

                              @chrizbee From the GDB log it is perfprofiler plug-in

                              chrizbeeC Offline
                              chrizbeeC Offline
                              chrizbee
                              wrote on last edited by
                              #18

                              @jsulm said in Qt Creator 4.9.1 does not start on Windows 10:

                              @chrizbee From the GDB log it is perfprofiler plug-in

                              Perfprofiler is not the problem ("only" soft assert). I disabled the plugin and retried with the same result (GDB has no soft assert anymore, but the SIGSEGV is still there).

                              @aha_1980 said in Qt Creator 4.9.1 does not start on Windows 10:

                              @jsulm And given it works with 4.8, probably some new setting introduced in 4.9...

                              Now here comes the strange part:
                              I've installed Qt 5.13.0 and tried the following standalone Qt Creator installers:
                              4.9.2 / 4.9.1 / 4.9.0 / 4.8.2 (both 32 and 64 bit) --> Neither of those worked.

                              So I've figured that the combination is where the problem is coming from.
                              Given this GDB log:

                              Thread 1 received signal SIGSEGV, Segmentation fault.
                              0x6422c807 in Qt5Core!?activate@QMetaObject@@SAXPAVQObject@@HHPAPAX@Z ()
                                 from C:\Qt\Qt5.13.0\Tools\QtCreator\bin\Qt5Core.dll
                              

                              I still do not have a solution to my problem, just a few workarounds which are quite nasty...

                              aha_1980A 1 Reply Last reply
                              0
                              • chrizbeeC chrizbee

                                @jsulm said in Qt Creator 4.9.1 does not start on Windows 10:

                                @chrizbee From the GDB log it is perfprofiler plug-in

                                Perfprofiler is not the problem ("only" soft assert). I disabled the plugin and retried with the same result (GDB has no soft assert anymore, but the SIGSEGV is still there).

                                @aha_1980 said in Qt Creator 4.9.1 does not start on Windows 10:

                                @jsulm And given it works with 4.8, probably some new setting introduced in 4.9...

                                Now here comes the strange part:
                                I've installed Qt 5.13.0 and tried the following standalone Qt Creator installers:
                                4.9.2 / 4.9.1 / 4.9.0 / 4.8.2 (both 32 and 64 bit) --> Neither of those worked.

                                So I've figured that the combination is where the problem is coming from.
                                Given this GDB log:

                                Thread 1 received signal SIGSEGV, Segmentation fault.
                                0x6422c807 in Qt5Core!?activate@QMetaObject@@SAXPAVQObject@@HHPAPAX@Z ()
                                   from C:\Qt\Qt5.13.0\Tools\QtCreator\bin\Qt5Core.dll
                                

                                I still do not have a solution to my problem, just a few workarounds which are quite nasty...

                                aha_1980A Offline
                                aha_1980A Offline
                                aha_1980
                                Lifetime Qt Champion
                                wrote on last edited by
                                #19

                                @chrizbee said in Qt Creator 4.9.1 does not start on Windows 10:

                                Given this GDB log:

                                Can you go upwards the stack trace and see where this crash originates from?

                                Anyway, if it works in a fresh user account I'd probably rename my account, create a new one and copy over all the things I need. It's a bit of work, but still faster than reinstalling the whole system.

                                Just my 2ct.

                                Qt has to stay free or it will die.

                                chrizbeeC 1 Reply Last reply
                                1
                                • aha_1980A aha_1980

                                  @chrizbee said in Qt Creator 4.9.1 does not start on Windows 10:

                                  Given this GDB log:

                                  Can you go upwards the stack trace and see where this crash originates from?

                                  Anyway, if it works in a fresh user account I'd probably rename my account, create a new one and copy over all the things I need. It's a bit of work, but still faster than reinstalling the whole system.

                                  Just my 2ct.

                                  chrizbeeC Offline
                                  chrizbeeC Offline
                                  chrizbee
                                  wrote on last edited by
                                  #20

                                  @aha_1980 said in Qt Creator 4.9.1 does not start on Windows 10:

                                  Anyway, if it works in a fresh user account I'd probably rename my account, create a new one and copy over all the things I need. It's a bit of work, but still faster than reinstalling the whole system.

                                  I actually ended up reinstalling the whole system. Still, this should not happen...

                                  aha_1980A 1 Reply Last reply
                                  1
                                  • chrizbeeC chrizbee

                                    @aha_1980 said in Qt Creator 4.9.1 does not start on Windows 10:

                                    Anyway, if it works in a fresh user account I'd probably rename my account, create a new one and copy over all the things I need. It's a bit of work, but still faster than reinstalling the whole system.

                                    I actually ended up reinstalling the whole system. Still, this should not happen...

                                    aha_1980A Offline
                                    aha_1980A Offline
                                    aha_1980
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #21

                                    @chrizbee I have three or more more instances of Creator open daily, so I'm pretty sure you had really bad luck...

                                    This should never happen again.

                                    Qt has to stay free or it will die.

                                    1 Reply Last reply
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