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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 Offline
    T Offline
    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.

      M Offline
      M Offline
      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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      • T Offline
        T Offline
        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

          M Offline
          M Offline
          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

          1 Reply Last reply
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          • T Offline
            T Offline
            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.

              J Offline
              J Offline
              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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              • T Offline
                T Offline
                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.

                  A Offline
                  A Offline
                  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.

                  1 Reply Last reply
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                  • T Offline
                    T Offline
                    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

                      A Offline
                      A Offline
                      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.

                      1 Reply Last reply
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                      • M Offline
                        M Offline
                        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.

                        1 Reply Last reply
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                        • T Offline
                          T Offline
                          TMcSquared
                          wrote on 9 Aug 2018, 17:12 last edited by
                          #16

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

                          1 Reply Last reply
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                          • M Offline
                            M Offline
                            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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                            • T Offline
                              T Offline
                              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
                              0
                              • T TMcSquared
                                9 Aug 2018, 19:20

                                already did that.

                                M Offline
                                M Offline
                                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.

                                1 Reply Last reply
                                1
                                • T Offline
                                  T Offline
                                  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
                                  0
                                  • T TMcSquared
                                    9 Aug 2018, 20:30

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

                                    M Offline
                                    M Offline
                                    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
                                    2
                                    • 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 ?

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

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

                                      1 Reply Last reply
                                      1
                                      • S Offline
                                        S Offline
                                        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

                                        1 Reply Last reply
                                        3
                                        • T TMcSquared
                                          9 Aug 2018, 16:55

                                          Hmm I'll try adding it to the PATH xD

                                          EDIT: that didn't work

                                          J Offline
                                          J Offline
                                          JonB
                                          wrote on 9 Aug 2018, 20:55 last edited by JonB 8 Sept 2018, 20:56
                                          #24

                                          @TMcSquared
                                          You could check whether Windows Update snuck in and did anything since it last worked... :)

                                          1 Reply Last reply
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