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Forum Update on Monday, May 27th 2025

How to run a C++ code in Qt?

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  • jsulmJ jsulm

    Did you try the first option in this window?

    RelaR Offline
    RelaR Offline
    Rela
    wrote on last edited by
    #54

    @jsulm
    Yes, it worked and now MSVC 2015 is working, but not Qt. 5.5.
    It gives error "Qt Creator needs a compiler set up to build. Configure a compiler in the kit options." in "Issues and in "Complie Output" the error "Configuration is faulty. Check the Issues view for details. Error while building/deploying project Circle2 (kit: Desktop Qt 5.5.1 MSVC2013 64bit) When executing step "Make". "

    I installed "standalone SDK" from here here Downloaded and a folder "Windows kits" was built in the same folder. I copied it in "Visual studio 14" folder, and run the Qt again, but this is Build & Run. No active "Desktop Qt5.5. MCVS 2013 64 bit".

    I dont know what the problem is? The kit should be MCVs 2105?

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #55

      I didn't realize… You changed Visual Studio's version in between. On Windows you can't mix and match compilers and libraries, Visual Studio's compilers are not compatible one with the other. So since you have the MSVC2013 Qt package, you have to use Visual Studio 2013 with it.

      If you want to use Visual Studio 2015, you can either build Qt yourself, or go with the 5.6 beta which has VS2015 packages.

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      RelaR 1 Reply Last reply
      0
      • SGaistS SGaist

        I didn't realize… You changed Visual Studio's version in between. On Windows you can't mix and match compilers and libraries, Visual Studio's compilers are not compatible one with the other. So since you have the MSVC2013 Qt package, you have to use Visual Studio 2013 with it.

        If you want to use Visual Studio 2015, you can either build Qt yourself, or go with the 5.6 beta which has VS2015 packages.

        RelaR Offline
        RelaR Offline
        Rela
        wrote on last edited by
        #56

        @SGaist said:
        Thanks, which one do you recommend? I spent a lot of time on lunching and problem with running my programs until now because of components and compilers. If I uninstall 5.5 and install 6.5. beta, does Qt 6.5. work conveniently with Qt5.5. projects?

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #57

          You're too much in the future ;) It's 5.6

          No problem using Qt 5.6 for project started with 5.5. Forward compatibility is one of Qt's guaranties.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          RelaR 1 Reply Last reply
          0
          • SGaistS SGaist

            You're too much in the future ;) It's 5.6

            No problem using Qt 5.6 for project started with 5.5. Forward compatibility is one of Qt's guaranties.

            RelaR Offline
            RelaR Offline
            Rela
            wrote on last edited by
            #58

            @SGaist
            I was going to uninstall it by opening "Maintenancetool.exe" > "Remove all components" but it gives this error in 92%...

            1 Reply Last reply
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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #59

              Unusual, but why not just update ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

              RelaR 1 Reply Last reply
              0
              • SGaistS SGaist

                Unusual, but why not just update ?

                RelaR Offline
                RelaR Offline
                Rela
                wrote on last edited by
                #60

                @SGaist
                I was going to work with Qt 5.6 beta with MVS2015. To have Qt 5.6 beta can I just update Qt 5.5? I clicked on update components in "Maintenancetool.exe" , is this the component I need?

                1 Reply Last reply
                1
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #61

                  No, that's Qt Creator. It's the IDE.

                  IIRC, the 5.6 beta installer is available through your Qt Account page

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                  RelaR 1 Reply Last reply
                  0
                  • SGaistS SGaist

                    No, that's Qt Creator. It's the IDE.

                    IIRC, the 5.6 beta installer is available through your Qt Account page

                    RelaR Offline
                    RelaR Offline
                    Rela
                    wrote on last edited by
                    #62

                    @SGaist
                    If you mean through this link, the Qt5.5 should not be uninstalled first?

                    1 Reply Last reply
                    1
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #63

                      There's also that link indeed. Since it's an offline installer, I don't remember whether it will overwrite the Qt folder or not

                      Interested in AI ? www.idiap.ch
                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                      RelaR 1 Reply Last reply
                      0
                      • SGaistS SGaist

                        There's also that link indeed. Since it's an offline installer, I don't remember whether it will overwrite the Qt folder or not

                        RelaR Offline
                        RelaR Offline
                        Rela
                        wrote on last edited by
                        #64

                        @SGaist
                        Is the installation way different from Qt5.5? Why does Qt5.6 give this error, while I installed Qt5.5 in the same folder?

                        1 Reply Last reply
                        0
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #65

                          Don't put Qt in a path with white spaces, that will save you much trouble.

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                          RelaR 1 Reply Last reply
                          0
                          • SGaistS SGaist

                            Don't put Qt in a path with white spaces, that will save you much trouble.

                            RelaR Offline
                            RelaR Offline
                            Rela
                            wrote on last edited by
                            #66

                            @SGaist
                            If you mean "program files'' it was the same folder I installed previous Qt5.5 and didnt give any message. By default Qt5.6 beta selects the C drive to install.

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #67

                              That's what I mean. Avoid white spaces it's the best thing to do on Windows.

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                              RelaR 1 Reply Last reply
                              0
                              • SGaistS SGaist

                                That's what I mean. Avoid white spaces it's the best thing to do on Windows.

                                RelaR Offline
                                RelaR Offline
                                Rela
                                wrote on last edited by
                                #68

                                @SGaist
                                Just to be sure which one I need to install?Qt5.6

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                                0
                                • SGaistS Offline
                                  SGaistS Offline
                                  SGaist
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #69

                                  The second one unless you are planning to use WinRT

                                  Interested in AI ? www.idiap.ch
                                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  RelaR 1 Reply Last reply
                                  0
                                  • SGaistS SGaist

                                    The second one unless you are planning to use WinRT

                                    RelaR Offline
                                    RelaR Offline
                                    Rela
                                    wrote on last edited by Rela
                                    #70

                                    @SGaist
                                    I dont have any idea about that, I was just running a C++ code in Qt and get outputs in UI... how can I know if it was installed before in Qt5.5? Moreover, there is a "_64" difference between the two: qt-opensource-windows-x86-msvc2015_64-5.6.0-beta.exe 17-Dec-2015 and
                                    qt-opensource-windows-x86-msvc2015-5.6.0-beta.exe

                                    1 Reply Last reply
                                    0
                                    • SGaistS Offline
                                      SGaistS Offline
                                      SGaist
                                      Lifetime Qt Champion
                                      wrote on last edited by
                                      #71

                                      The _64 is to be used if you want to build a 64 bit version of your application. That also requires a 64 bit OS to run.

                                      The Beta doesn't installed itself in 5.5 since it's the 5.6 beta

                                      Interested in AI ? www.idiap.ch
                                      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                      RelaR 1 Reply Last reply
                                      0
                                      • SGaistS SGaist

                                        The _64 is to be used if you want to build a 64 bit version of your application. That also requires a 64 bit OS to run.

                                        The Beta doesn't installed itself in 5.5 since it's the 5.6 beta

                                        RelaR Offline
                                        RelaR Offline
                                        Rela
                                        wrote on last edited by
                                        #72

                                        @SGaist
                                        My system is windows 7 64-bit, and I am going to run a C++ code using Qt with MCVS 2015.
                                        Just to prevent from over or re-installation again, could you please tell me which one I need to install?

                                        1 Reply Last reply
                                        0
                                        • SGaistS Offline
                                          SGaistS Offline
                                          SGaist
                                          Lifetime Qt Champion
                                          wrote on last edited by
                                          #73

                                          If you plan to only run your application on 64bit Windows, then take the 64bit version otherwise the 32.

                                          Interested in AI ? www.idiap.ch
                                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                          RelaR 1 Reply Last reply
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