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Forum Update on Monday, May 27th 2025

Unable to run any code in QTCreator

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  • D Offline
    D Offline
    Dn588
    wrote on last edited by
    #1

    Hi all

    I just started a QT course and am having some problem running code in QTCreator. When I try to run any code(even QT examples from my textbook) I don't get any output. it just says starting C:<filePath> at the bottom. Adny idea what I could be doing wrong?
    Thanks in advance

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    • 3 Offline
      3 Offline
      3dh3dh.de
      wrote on last edited by
      #2

      Hi,

      please provide more informations about your development environment (Qt version, compiler, IDE version) and operating system.

      As you maybe already experienced the Qt SDK is available on many different Linux, Unix; QNX, Windows, Mac OS X and mobile platforms.

      ciao,
      Chris

      // http://3DH.de

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      • D Offline
        D Offline
        Dn588
        wrote on last edited by
        #3

        Hi Chris i'm using Windows 7 ultimate 32 bit, QTCreator v2.2.0 QT SDK 2010.04 a

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi and welcome to devnet,

          That SDK and Creator version are 4 years old, unless you are tied to it please consider installing the latest version available "here":http://qt-project.org/downloads

          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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          • D Offline
            D Offline
            Dn588
            wrote on last edited by
            #5

            Hi yes I am tied to it as I have to use the version given out by my lecturer. It seems to be working fine for everyone else doing this course...

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            • D Offline
              D Offline
              Dn588
              wrote on last edited by
              #6

              I just spoke to my lecturer and he said it's fine to use the latest version as long as the code could be compiled on the 4-year old version. Would that work?

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #7

                Then, download also Qt 4.8.5 or 4.8.6 and use that one, you'll be on the safe side in that case.

                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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                • D Offline
                  D Offline
                  Dn588
                  wrote on last edited by
                  #8

                  Thanks a lot will do that. How would I get the new QTCreator to compile using QT 4.8?.5 or 6?

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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #9

                    Absolutely no need to recompile Qt Creator nor Qt. Just use it and add your Qt 4.8.X to the known Qt version and make a Kit out of it.

                    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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                    • D Offline
                      D Offline
                      Dn588
                      wrote on last edited by
                      #10

                      How do I go about doing that? I tried to install QT 4.8.5 but i'm getting a warning when I click install "could not find a valid C:\mingw\include\w32.h" any idea how I can fix that?
                      Thanks

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #11

                        What packages did you use ?

                        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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                        • D Offline
                          D Offline
                          Dn588
                          wrote on last edited by
                          #12

                          When I installed mingw I only installed the G++ package

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #13

                            If you can avoid installing external MinGW. The latest Qt installer provides a Qt 5 version with MinGW also in the package, so you have everything in one place.

                            Doing so you would need to install the "4.8.6 snapshot":http://download.qt-project.org/snapshots/qt/4.8/2014-02-17_484/qt-opensource-windows-x86-mingw482-4.8.6-2014-02-17-484.exe so you can directly use it. 4.8.5 is built with MinGW 4.6 which is not compatible with 4.8

                            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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                            • D Offline
                              D Offline
                              Dn588
                              wrote on last edited by
                              #14

                              I finally finished downloading the latest version of QT, but When I try to #include QApplication or QLabel I get an error message saying no such file or directory... any idea what i'm doing wrong? Also how would I create a kit of QT 4.8.6?
                              Thanks again

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                              • SGaistS Offline
                                SGaistS Offline
                                SGaist
                                Lifetime Qt Champion
                                wrote on last edited by
                                #15

                                Just go in the Kit panel, create a new one and select Qt 4.8.6 as the Qt version to use with it

                                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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                                • D Offline
                                  D Offline
                                  Dn588
                                  wrote on last edited by
                                  #16

                                  Now when I try to install QT 4,8.6 it complains that g++ isn't installed with mingw. This is the default mingw that came with the latest version of QT. The warning says that it might not work should I just install it anyway? Or is there a way to add g++ to mingw

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #17

                                    I'am not sure I'm getting you right. Did you install the 5.2 MinGW edition ?

                                    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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                                    • D Offline
                                      D Offline
                                      Dn588
                                      wrote on last edited by
                                      #18

                                      So it turns out the issue was Avast antivirus's realtime protection. Thanks again for all the replies.

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