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  4. QtCreator crashed and now will not start due to segfault
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QtCreator crashed and now will not start due to segfault

Scheduled Pinned Locked Moved Solved Qt Creator and other tools
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  • T TMcSquared
    9 Aug 2018, 13:20

    Qt-Creator 4.7.0 on Windows 10
    I think I overloaded it clicking on settings(not exactly sure though)
    I don't think the gfx driver's an issue because it was running fine yesterday, and I haven't had anything change on my machine.

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    mrjj
    Lifetime Qt Champion
    wrote on 9 Aug 2018, 15:06 last edited by
    #4

    @TMcSquared

    Ok, if it was working yesterday. then cant be the gfx is no windows update
    or anything.

    Can you still reproduce it ?

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      TMcSquared
      wrote on 9 Aug 2018, 15:07 last edited by
      #5

      Yes, Qt-Creator just won't open at all, even after I re-install the entire thing.

      M 1 Reply Last reply 9 Aug 2018, 15:10
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      • T TMcSquared
        9 Aug 2018, 15:07

        Yes, Qt-Creator just won't open at all, even after I re-install the entire thing.

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        mrjj
        Lifetime Qt Champion
        wrote on 9 Aug 2018, 15:10 last edited by mrjj 8 Sept 2018, 15:10
        #6

        @TMcSquared

        Ok, that is odd.

        there is
        C:\Users\username\AppData\Local\QtProject
        C:\Users\username\AppData\Roaming\QtProject
        which can be left over even if reinstall.

        It should be pretty safe to delete, but Creator will forget anything then.

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          TMcSquared
          wrote on 9 Aug 2018, 15:19 last edited by
          #7

          I've deleted those already between installs

          M 1 Reply Last reply 9 Aug 2018, 15:20
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          • T TMcSquared
            9 Aug 2018, 15:19

            I've deleted those already between installs

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            mrjj
            Lifetime Qt Champion
            wrote on 9 Aug 2018, 15:20 last edited by mrjj 8 Sept 2018, 15:22
            #8

            @TMcSquared
            and it still crashes ? wow. thats new.
            Do you have sessions enabled ?
            also , have you tried starting it from a shell (cmd)
            to see if anything is written ?

            also when starting in cmd.
            try adding
            -noload Welcome

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              TMcSquared
              wrote on 9 Aug 2018, 15:41 last edited by
              #9

              I get a segmentation fault when I run it from the cmdline both without and with arguments.

              J 1 Reply Last reply 9 Aug 2018, 15:51
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              • T TMcSquared
                9 Aug 2018, 15:41

                I get a segmentation fault when I run it from the cmdline both without and with arguments.

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                JonB
                wrote on 9 Aug 2018, 15:51 last edited by
                #10

                @TMcSquared
                There's, oohh, a 1% chance that if you try running Qt Creator from within a debugger like Visual Studio (if you have that...), when it faults you'll get enough information from the stack trace to hazard a guess as to where it's going wrong...

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                  TMcSquared
                  wrote on 9 Aug 2018, 16:20 last edited by
                  #11

                  I just debugged it and got this: Exception thrown at 0x670E5DA7 (Qt5Core.dll) in qtcreator.exe: 0xC0000005: Access violation reading location 0x7E5B8721.

                  A 1 Reply Last reply 9 Aug 2018, 16:54
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                  • T TMcSquared
                    9 Aug 2018, 16:20

                    I just debugged it and got this: Exception thrown at 0x670E5DA7 (Qt5Core.dll) in qtcreator.exe: 0xC0000005: Access violation reading location 0x7E5B8721.

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                    aha_1980
                    Lifetime Qt Champion
                    wrote on 9 Aug 2018, 16:54 last edited by
                    #12

                    @TMcSquared

                    Is it possible that the wrong Qt DLLs are loaded? Have you changed the PATH environment variable, for example?

                    Qt has to stay free or it will die.

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                    • T Offline
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                      TMcSquared
                      wrote on 9 Aug 2018, 16:55 last edited by TMcSquared 8 Sept 2018, 16:59
                      #13

                      Hmm I'll try adding it to the PATH xD

                      EDIT: that didn't work

                      A J 2 Replies Last reply 9 Aug 2018, 16:56
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                      • T TMcSquared
                        9 Aug 2018, 16:55

                        Hmm I'll try adding it to the PATH xD

                        EDIT: that didn't work

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                        aha_1980
                        Lifetime Qt Champion
                        wrote on 9 Aug 2018, 16:56 last edited by
                        #14

                        @TMcSquared

                        No, that's not what I meant! I meant, have you done before? Or have you installed some program that did?

                        Qt has to stay free or it will die.

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                          mranger90
                          wrote on 9 Aug 2018, 17:00 last edited by
                          #15

                          Take a look at qt.conf in the creator/bin directory. If it's corrupted then plugins wont load.

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                            TMcSquared
                            wrote on 9 Aug 2018, 17:12 last edited by
                            #16

                            It's not corrupted because it's a clean install

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                              mranger90
                              wrote on 9 Aug 2018, 19:08 last edited by
                              #17

                              The try wiping out the creator files under AppData\Roaming\Qtproject

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                                TMcSquared
                                wrote on 9 Aug 2018, 19:20 last edited by
                                #18

                                already did that.

                                M 1 Reply Last reply 9 Aug 2018, 19:28
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                                • T TMcSquared
                                  9 Aug 2018, 19:20

                                  already did that.

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                                  mrjj
                                  Lifetime Qt Champion
                                  wrote on 9 Aug 2018, 19:28 last edited by
                                  #19

                                  @TMcSquared
                                  Best guess is that it gets wrong QtDLLs maybe via
                                  path.

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                                  • T Offline
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                                    TMcSquared
                                    wrote on 9 Aug 2018, 20:30 last edited by
                                    #20

                                    My PATH variable has zero Qt paths in it. even after a clean install.

                                    M 1 Reply Last reply 9 Aug 2018, 20:32
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                                    • T TMcSquared
                                      9 Aug 2018, 20:30

                                      My PATH variable has zero Qt paths in it. even after a clean install.

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                                      mrjj
                                      Lifetime Qt Champion
                                      wrote on 9 Aug 2018, 20:32 last edited by
                                      #21

                                      @TMcSquared
                                      I have no idea then.
                                      last test
                                      can you start with
                                      qtcreator -noload Welcome -noload QmlDesigner -noload QmlProfiler
                                      from shell and see if still crash ?

                                      T 1 Reply Last reply 9 Aug 2018, 20:51
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                                      • M mrjj
                                        9 Aug 2018, 20:32

                                        @TMcSquared
                                        I have no idea then.
                                        last test
                                        can you start with
                                        qtcreator -noload Welcome -noload QmlDesigner -noload QmlProfiler
                                        from shell and see if still crash ?

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                                        TMcSquared
                                        wrote on 9 Aug 2018, 20:51 last edited by
                                        #22

                                        :O It opened with qtcreator -noload Welcome -noload QmlDesigner -noload QmlProfiler

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                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on 9 Aug 2018, 20:52 last edited by
                                          #23

                                          Hi,

                                          Then it sounds like a graphic driver issue then. Are you sure there wasn't any modification in that regard on your machine ?

                                          Interested in AI ? www.idiap.ch
                                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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