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QWidget / QApplication

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  • aha_1980A aha_1980

    @krichen30 You may also get this error if you're mixing debug and release libraries on Windows.

    K Offline
    K Offline
    krichen30
    wrote on last edited by
    #5

    @aha_1980 how can i fix it ?

    aha_1980A 1 Reply Last reply
    0
    • K krichen30

      @aha_1980 how can i fix it ?

      aha_1980A Offline
      aha_1980A Offline
      aha_1980
      Lifetime Qt Champion
      wrote on last edited by
      #6

      @krichen30 At first I would try a clean rebuild.

      Qt has to stay free or it will die.

      1 Reply Last reply
      2
      • mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #7

        Hi
        it doesn't look like you have any global widgets just a normal mainwindow.
        So yeah, try as @aha_1980 suggest and completely wipe the
        build folder.

        1 Reply Last reply
        2
        • K Offline
          K Offline
          krichen30
          wrote on last edited by
          #8

          i delete the folder debug and i redebug it but nothing change same error ...

          mrjjM 1 Reply Last reply
          0
          • K krichen30

            i delete the folder debug and i redebug it but nothing change same error ...

            mrjjM Offline
            mrjjM Offline
            mrjj
            Lifetime Qt Champion
            wrote on last edited by
            #9

            @krichen30
            Hi
            You only have the Satistique class ?
            and no other files?

            Does it say this when running from creator ?

            K 1 Reply Last reply
            0
            • mrjjM mrjj

              @krichen30
              Hi
              You only have the Satistique class ?
              and no other files?

              Does it say this when running from creator ?

              K Offline
              K Offline
              krichen30
              wrote on last edited by
              #10

              @mrjj i have another files but not include in this statistique class

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              • K Offline
                K Offline
                krichen30
                wrote on last edited by
                #11

                do you have solution please !!!

                mrjjM 1 Reply Last reply
                0
                • K krichen30

                  do you have solution please !!!

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  @krichen30
                  Nope. If you dont have any global QWidgets/QObject before main is run, i
                  have no idea.

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                  • hskoglundH Online
                    hskoglundH Online
                    hskoglund
                    wrote on last edited by
                    #13

                    Perhaps a QSqlDatabase? If there's a static instance, it will also cause this error.

                    mrjjM K 2 Replies Last reply
                    3
                    • hskoglundH hskoglund

                      Perhaps a QSqlDatabase? If there's a static instance, it will also cause this error.

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      @hskoglund
                      Very good guess since he as SQL classes.

                      1 Reply Last reply
                      0
                      • hskoglundH hskoglund

                        Perhaps a QSqlDatabase? If there's a static instance, it will also cause this error.

                        K Offline
                        K Offline
                        krichen30
                        wrote on last edited by
                        #15

                        @hskoglund what is the relation between QSqlDatabase and QWidget ?

                        mrjjM 1 Reply Last reply
                        0
                        • K krichen30

                          @hskoglund what is the relation between QSqlDatabase and QWidget ?

                          mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by mrjj
                          #16

                          @krichen30
                          But do you have a static QSqlDatabase ?

                          1 Reply Last reply
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