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Install QT5.1 in ubuntukylin 13.04

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  • qazaq408Q Offline
    qazaq408Q Offline
    qazaq408
    wrote on last edited by
    #1

    my OS is ubuntuylin 13.04,I download QT 5.1 int http://qt-project.org,

    then I use- cmd "chmod 755 ./QT......run"
    "./QT.....run"

    try to install QT5.1 and finish it work. and I going to make a first QT project.

    I edit simple code by VIM, and move the file to a new file directory.(path = /home/jxf/gui)

    I use cmd " cd /home/jxf/gui"
    "qmake -project"

    and system tell me " qmake: could not find a Qt installation of ' ' ".....

    now I use the IDE(QT creator)
    
    the question is "can't find file or directory"(it's chinese error ,I try to translate,my english is poor.........)
    
    code  : 
       #include<QApplication>     // <==this line ,IDE tell me "can't find file or directory"
    
      #include<QLabel>
    
       int main(int argc, char* argv[])
    
    {
    
         QApplication app(argc,argv);
    
         QLabel label = new QLabel("hello QT!");
    
         label->show();
    
        return app.exec&#40;&#41;;
    
    }
    
    what should I do ......
    1 Reply Last reply
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    • qazaq408Q Offline
      qazaq408Q Offline
      qazaq408
      wrote on last edited by
      #2

      @#include<QApplication> // <==this line ,IDE tell me “can’t find file or directory”
      #include<QLabel>
      int main(int argc, char* argv[])
      {
      QApplication app(argc,argv);
      QLabel label = new QLabel(“hello QT!”);
      label->show();
      return app.exec();
      }
      @

      1 Reply Last reply
      0
      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #3

        Hi and welcome to devnet,

        Since you are using Qt 5 you are missing:

        @QT += widgets@

        in your pro file

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

        1 Reply Last reply
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        • qazaq408Q Offline
          qazaq408Q Offline
          qazaq408
          wrote on last edited by
          #4

          excuse me..
          I'm a noob and thanks your E-mail,

          first,I building a new file that include these code.
          @
          #include<QApplication>
          #include<QLabel>
          int main(int argc, char* argv[])
          {
          QApplication app(argc,argv);
          QLabel label = new QLabel(“hello QT!”);
          label->show();
          return app.exec();
          }
          @

          the name of file is qt.cpp.(path = /home/jxf/gui)

          the second ,cmd "cd /home/jxf/gui"
          so far,everything go well,

          for build a .pro, I use cmd "qmake -project", if all go well, I'll get a .pro(file).
          but systen tell me " qmake: could not find a Qt installation of '' "

          what happen....

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          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #5

            Are you sure you are using the qmake from Qt 5.1 ?

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

            1 Reply Last reply
            0
            • G Offline
              G Offline
              guru
              wrote on last edited by
              #6

              use this in your terminal mode:

              @sudo apt-get install build-essential@

              1 Reply Last reply
              0

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