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Forum Update on Tuesday, May 27th 2025

Several errors after Qt update

Scheduled Pinned Locked Moved Solved General and Desktop
updateerror detectionreference error
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  • UnitScanU Offline
    UnitScanU Offline
    UnitScan
    wrote on last edited by
    #1

    I update my Qt version from 5.70 to the latest, .5.12.1, With the old version, everything works fine: after update, I try to launch my app, and this is the result:

    https://i.imgur.com/0DiIqF6.gif

    There is something new that I need to know?

    Thank you in advance

    jsulmJ J.HilkJ 2 Replies Last reply
    0
    • UnitScanU UnitScan

      I update my Qt version from 5.70 to the latest, .5.12.1, With the old version, everything works fine: after update, I try to launch my app, and this is the result:

      https://i.imgur.com/0DiIqF6.gif

      There is something new that I need to know?

      Thank you in advance

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #2

      @UnitScan Did you try a complete rebuild (delete build folder, run qmake and build)?

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

      UnitScanU 1 Reply Last reply
      1
      • UnitScanU UnitScan

        I update my Qt version from 5.70 to the latest, .5.12.1, With the old version, everything works fine: after update, I try to launch my app, and this is the result:

        https://i.imgur.com/0DiIqF6.gif

        There is something new that I need to know?

        Thank you in advance

        J.HilkJ Online
        J.HilkJ Online
        J.Hilk
        Moderators
        wrote on last edited by
        #3

        @UnitScan for what platform is this?


        Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


        Q: What's that?
        A: It's blue light.
        Q: What does it do?
        A: It turns blue.

        UnitScanU 1 Reply Last reply
        1
        • jsulmJ jsulm

          @UnitScan Did you try a complete rebuild (delete build folder, run qmake and build)?

          UnitScanU Offline
          UnitScanU Offline
          UnitScan
          wrote on last edited by
          #4

          @jsulm Not yet

          1 Reply Last reply
          0
          • J.HilkJ J.Hilk

            @UnitScan for what platform is this?

            UnitScanU Offline
            UnitScanU Offline
            UnitScan
            wrote on last edited by
            #5

            @J.Hilk Windows 7

            1 Reply Last reply
            0
            • UnitScanU Offline
              UnitScanU Offline
              UnitScan
              wrote on last edited by
              #6

              A more complete view: https://i.imgur.com/7L2qX51.gif

              J.HilkJ 1 Reply Last reply
              0
              • UnitScanU UnitScan

                A more complete view: https://i.imgur.com/7L2qX51.gif

                J.HilkJ Online
                J.HilkJ Online
                J.Hilk
                Moderators
                wrote on last edited by
                #7

                @UnitScan
                mmh, can you show us the kit's & compiler tab of your configuration/settings of QtCreator.

                Seems as if there's something not ok.


                Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                Q: What's that?
                A: It's blue light.
                Q: What does it do?
                A: It turns blue.

                UnitScanU 1 Reply Last reply
                2
                • J.HilkJ J.Hilk

                  @UnitScan
                  mmh, can you show us the kit's & compiler tab of your configuration/settings of QtCreator.

                  Seems as if there's something not ok.

                  UnitScanU Offline
                  UnitScanU Offline
                  UnitScan
                  wrote on last edited by
                  #8

                  @J.Hilk: https://i.imgur.com/BXcMTiR.gif

                  J.HilkJ 1 Reply Last reply
                  0
                  • UnitScanU UnitScan

                    @J.Hilk: https://i.imgur.com/BXcMTiR.gif

                    J.HilkJ Online
                    J.HilkJ Online
                    J.Hilk
                    Moderators
                    wrote on last edited by J.Hilk
                    #9

                    @UnitScan
                    well yes,
                    you have mingw compiler assigned to MSVC precompiled Qt-Libs. Unsurprisingly this does not work.

                    You need msvc compiler for that precompiled QT-Lib or you need to download the mingw-libs.


                    Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                    Q: What's that?
                    A: It's blue light.
                    Q: What does it do?
                    A: It turns blue.

                    UnitScanU 1 Reply Last reply
                    3
                    • J.HilkJ J.Hilk

                      @UnitScan
                      well yes,
                      you have mingw compiler assigned to MSVC precompiled Qt-Libs. Unsurprisingly this does not work.

                      You need msvc compiler for that precompiled QT-Lib or you need to download the mingw-libs.

                      UnitScanU Offline
                      UnitScanU Offline
                      UnitScan
                      wrote on last edited by
                      #10

                      @J.Hilk ok, where I can find the MinGW libs?

                      J.HilkJ 1 Reply Last reply
                      0
                      • UnitScanU UnitScan

                        @J.Hilk ok, where I can find the MinGW libs?

                        J.HilkJ Online
                        J.HilkJ Online
                        J.Hilk
                        Moderators
                        wrote on last edited by
                        #11

                        @UnitScan
                        how did you install Qt to begin with ?

                        If you used the online installer, you can use that tool to add missing features:

                        0_1549289555417_558e21fe-73cf-4371-a4a9-63d455e69b6d-image.png

                        If you used the offline installer than you'll have to deinstall Qt completely first, as the offlineinstaller does not allow for later changes.


                        Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                        Q: What's that?
                        A: It's blue light.
                        Q: What does it do?
                        A: It turns blue.

                        UnitScanU 1 Reply Last reply
                        3
                        • J.HilkJ J.Hilk

                          @UnitScan
                          how did you install Qt to begin with ?

                          If you used the online installer, you can use that tool to add missing features:

                          0_1549289555417_558e21fe-73cf-4371-a4a9-63d455e69b6d-image.png

                          If you used the offline installer than you'll have to deinstall Qt completely first, as the offlineinstaller does not allow for later changes.

                          UnitScanU Offline
                          UnitScanU Offline
                          UnitScan
                          wrote on last edited by
                          #12

                          @J.Hilk My Initially I did not install it because my system is 32bit

                          J.HilkJ 1 Reply Last reply
                          0
                          • UnitScanU UnitScan

                            @J.Hilk My Initially I did not install it because my system is 32bit

                            J.HilkJ Online
                            J.HilkJ Online
                            J.Hilk
                            Moderators
                            wrote on last edited by
                            #13

                            @UnitScan said in Several errors after Qt update:

                            @J.Hilk My Initially I did not install it because my system is 32bit

                            Yes, that is currently an issue, there are talks of adding mingw32 precompiled libs to the downloader, but that's still up for discussion.

                            You have 3 Options than,

                            • switching back to 5.11.3, IIRC those have precompiled 32 bit libs for mingw
                            • installing MSVC compiler(for legal reasons you have to get them manually from Microsoft)
                            • compiling 5.12.1 yourself

                            Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


                            Q: What's that?
                            A: It's blue light.
                            Q: What does it do?
                            A: It turns blue.

                            1 Reply Last reply
                            3
                            • UnitScanU Offline
                              UnitScanU Offline
                              UnitScan
                              wrote on last edited by
                              #14

                              Solved, thanks @J-Hilk

                              aha_1980A 1 Reply Last reply
                              1
                              • UnitScanU UnitScan

                                Solved, thanks @J-Hilk

                                aha_1980A Offline
                                aha_1980A Offline
                                aha_1980
                                Lifetime Qt Champion
                                wrote on last edited by
                                #15

                                Hi @UnitScan,

                                so please mark this topic as SOLVED too. Thanks!

                                Qt has to stay free or it will die.

                                1 Reply Last reply
                                0

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