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Qt does not find some header files (Debian)

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  • N Offline
    N Offline
    need4openid
    wrote on last edited by
    #1

    I just installed Qt on Debian Stretch from DVD (offline install).
    I can compile and run a simple, just a mainwindow project. But when it comes to include QJsonObject, it just cannot detect this file, but it does exist under my /usr/include directory.

    jsulmJ 1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #5

      Hi,

      Maybe a silly question but are you sure you are using Qt 5 and not Qt 4 ?

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

      N 1 Reply Last reply
      1
      • N need4openid

        I just installed Qt on Debian Stretch from DVD (offline install).
        I can compile and run a simple, just a mainwindow project. But when it comes to include QJsonObject, it just cannot detect this file, but it does exist under my /usr/include directory.

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

        @need4openid Do you have

        QT += core
        

        in you pro file?

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

        1 Reply Last reply
        1
        • mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #3

          Hi
          Just as a note.
          All classes list their key/module to add to .pro file

          alt text

          1 Reply Last reply
          1
          • N Offline
            N Offline
            need4openid
            wrote on last edited by need4openid
            #4

            By default I have

            QT += core gui
            

            in my .pro file when I create a new desktop application project. So it is not because that.

            jsulmJ 1 Reply Last reply
            0
            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #5

              Hi,

              Maybe a silly question but are you sure you are using Qt 5 and not Qt 4 ?

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

              N 1 Reply Last reply
              1
              • N need4openid

                By default I have

                QT += core gui
                

                in my .pro file when I create a new desktop application project. So it is not because that.

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #6

                @need4openid Can you show how you include this header file?

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

                1 Reply Last reply
                0
                • SGaistS SGaist

                  Hi,

                  Maybe a silly question but are you sure you are using Qt 5 and not Qt 4 ?

                  N Offline
                  N Offline
                  need4openid
                  wrote on last edited by
                  #7

                  @SGaist said in Qt does not find some header files (Debian):

                  Hi,

                  Maybe a silly question but are you sure you are using Qt 5 and not Qt 4 ?

                  No such question as silly question. That was it, I had both installed.
                  Thanks guys

                  1 Reply Last reply
                  1

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