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lexical and preprocessor issue on c++

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  • C Offline
    C Offline
    Christian Ehrlicher
    Lifetime Qt Champion
    wrote on 17 Oct 2020, 17:01 last edited by
    #2

    Make sure the correct compiler are found by QtCreator - see https://doc.qt.io/qtcreator/creator-tool-chains.html

    Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
    Visit the Qt Academy at https://academy.qt.io/catalog

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    • A Offline
      A Offline
      alex_890
      wrote on 17 Oct 2020, 21:54 last edited by
      #3

      it wasnt marked but anyway nothing changed

      J 1 Reply Last reply 18 Oct 2020, 08:13
      0
      • A alex_890
        17 Oct 2020, 21:54

        it wasnt marked but anyway nothing changed

        J Offline
        J Offline
        JonB
        wrote on 18 Oct 2020, 08:13 last edited by
        #4

        @alex_890
        Presumably either your #include statement is wrong, the include path is wrong, or the necessary file(s) are not present in the directories. The C++ preprocessor is not an element of Qt/Qt Creator. Pasting your include line together with the error message you presumably receive would seem relevant....

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        • A Offline
          A Offline
          alex_890
          wrote on 18 Oct 2020, 08:36 last edited by
          #5

          how do i do that?

          J 1 Reply Last reply 18 Oct 2020, 08:53
          0
          • A alex_890
            18 Oct 2020, 08:36

            how do i do that?

            J Offline
            J Offline
            JonB
            wrote on 18 Oct 2020, 08:53 last edited by
            #6

            @alex_890
            Do what? Are you asking how to use copy & paste under your operating system to show a line of code and an error message received? You're supposed to know how to do that....

            A 1 Reply Last reply 18 Oct 2020, 08:57
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            • J JonB
              18 Oct 2020, 08:53

              @alex_890
              Do what? Are you asking how to use copy & paste under your operating system to show a line of code and an error message received? You're supposed to know how to do that....

              A Offline
              A Offline
              alex_890
              wrote on 18 Oct 2020, 08:57 last edited by
              #7

              @JonB no no, when i open a proyect it has already writen #include <iostream> but it sais file not found

              J 1 Reply Last reply 18 Oct 2020, 09:02
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              • A alex_890
                18 Oct 2020, 08:57

                @JonB no no, when i open a proyect it has already writen #include <iostream> but it sais file not found

                J Offline
                J Offline
                JonB
                wrote on 18 Oct 2020, 09:02 last edited by
                #8

                @alex_890 said in lexical and preprocessor issue on c++:

                but it sais file not found

                What says it's not found? The compiler when you try to compile, Qt Creator with a tooltip/message against the line, or what? If the latter, does it actually error when you try to compile, are you using clang inside Creator for completion/hints? What is the include path, and have you looked inside there to make sure whether the files are actually present, or is it looking in the wrong place? Perhaps show a pic of which kit you have selected for the project?

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                • A Offline
                  A Offline
                  alex_890
                  wrote on 18 Oct 2020, 09:19 last edited by
                  #9

                  it doesnt let me put any kits even i have installed all of them which come with the intalator

                  J 1 Reply Last reply 18 Oct 2020, 09:22
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                  • A alex_890
                    18 Oct 2020, 09:19

                    it doesnt let me put any kits even i have installed all of them which come with the intalator

                    J Offline
                    J Offline
                    JonB
                    wrote on 18 Oct 2020, 09:22 last edited by JonB
                    #10

                    @alex_890
                    You said earlier:

                    it wasnt marked but anyway nothing changed

                    Anyway, clearly if you cannot select any kits you are going to have a problem. Not my area, maybe a screenshot of what kits it shows are available or not? And how/what did you install, do you even have a C++ compiler installed, and where?

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                    • A Offline
                      A Offline
                      alex_890
                      wrote on 18 Oct 2020, 09:29 last edited by
                      #11

                      the thing that i said earlier was from the autodetect compiler, yes i have c++ compiler installed or at least its sais so.

                      b36a36b1-c93c-4a43-b0bf-b4e7b545794d-image.png

                      80170e91-9eaa-425e-9356-39fbc195e097-image.png

                      J J 2 Replies Last reply 18 Oct 2020, 10:00
                      0
                      • A alex_890
                        18 Oct 2020, 09:29

                        the thing that i said earlier was from the autodetect compiler, yes i have c++ compiler installed or at least its sais so.

                        b36a36b1-c93c-4a43-b0bf-b4e7b545794d-image.png

                        80170e91-9eaa-425e-9356-39fbc195e097-image.png

                        J Offline
                        J Offline
                        JonB
                        wrote on 18 Oct 2020, 10:00 last edited by JonB
                        #12

                        @alex_890
                        I don't know (unless clicking one of the Details buttons tells you more), but from the picture wait for someone here to tell you why it is saying "No suitable kits found"....

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                        • A alex_890
                          18 Oct 2020, 09:29

                          the thing that i said earlier was from the autodetect compiler, yes i have c++ compiler installed or at least its sais so.

                          b36a36b1-c93c-4a43-b0bf-b4e7b545794d-image.png

                          80170e91-9eaa-425e-9356-39fbc195e097-image.png

                          J Offline
                          J Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on 19 Oct 2020, 05:43 last edited by
                          #13

                          @alex_890 Please show the Kits tab

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

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                          18 Oct 2020, 09:29

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