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Forum Update on Monday, May 27th 2025

Cannot solve this problem to (finally) start with Qt

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  • cppStudent012C Offline
    cppStudent012C Offline
    cppStudent012
    wrote on last edited by
    #1

    After downloading Qt and having created a New Qt Widgets Application project, suddenly all these errors popped up.

    I've been searching the web for the last hours but couldn't find any answer to this.

    I tried to uninstall and re-install Qt but the errors moltiplicated instead of disappearing and all of this was kind of dispiriting....

    Could please anyone help me?

    Thank you in advance.

    3_1546732912962_QTimg1.png 2_1546732912962_QTimg2.png 1_1546732912962_QTimg3.png 0_1546732912962_QTimg4.png

    1 Reply Last reply
    0
    • ODБOïO Offline
      ODБOïO Offline
      ODБOï
      wrote on last edited by
      #2

      Hi @cppStudent012
      How do you install Qt , what version ?
      Can you open Tools/options in qtCreator and verify tha you have a Qt version and a compiler in kits ?

      cppStudent012C 1 Reply Last reply
      1
      • dheerendraD Offline
        dheerendraD Offline
        dheerendra
        Qt Champions 2022
        wrote on last edited by
        #3

        Just try to close qt Creator and reopen the project. It may solve the issue

        Dheerendra
        @Community Service
        Certified Qt Specialist
        http://www.pthinks.com

        1 Reply Last reply
        1
        • ODБOïO ODБOï

          Hi @cppStudent012
          How do you install Qt , what version ?
          Can you open Tools/options in qtCreator and verify tha you have a Qt version and a compiler in kits ?

          cppStudent012C Offline
          cppStudent012C Offline
          cppStudent012
          wrote on last edited by
          #4

          @LeLev

          I made the default install, but since I use windows I selected MinGW as compiler.

          2_1546762161369_QT2img1.png 1_1546762161369_QT2img2.png 0_1546762161368_QT2img3.png

          aha_1980A 1 Reply Last reply
          0
          • cppStudent012C cppStudent012

            @LeLev

            I made the default install, but since I use windows I selected MinGW as compiler.

            2_1546762161369_QT2img1.png 1_1546762161369_QT2img2.png 0_1546762161368_QT2img3.png

            aha_1980A Offline
            aha_1980A Offline
            aha_1980
            Lifetime Qt Champion
            wrote on last edited by
            #5

            hi @cppStudent012,

            but you also have MSVC compilers on your system?!

            Anyway, I think you installed way too much. If you want to start with MinGW, install only that Qt version and no Android, UWP or MSVC versions to avoid confusion.

            The inline errors you have most often disappear after the first successful compile when all files are generated.

            Regards

            Qt has to stay free or it will die.

            cppStudent012C 1 Reply Last reply
            3
            • aha_1980A aha_1980

              hi @cppStudent012,

              but you also have MSVC compilers on your system?!

              Anyway, I think you installed way too much. If you want to start with MinGW, install only that Qt version and no Android, UWP or MSVC versions to avoid confusion.

              The inline errors you have most often disappear after the first successful compile when all files are generated.

              Regards

              cppStudent012C Offline
              cppStudent012C Offline
              cppStudent012
              wrote on last edited by
              #6

              @aha_1980
              You were absolutely right! After reinstalling everything went fine.

              Thank you, thank you very much!

              1 Reply Last reply
              1

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