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Can't find valid kit on Ubuntu 16.04

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  • V veera

    @jsulm yes installed latest g++ compiler and usually after building the qt application will just running it...
    and normal gui application will running correctly ....when it comes to interfacing with MS Sql server i am getting the error of intermixing of qt versions....

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #8

    @veera As @mrjj suggested you should do

    ldd PATH_TO_YOUR_EXE
    

    Also try to set QT_DEBUG_PLUGINS=1 before running your app to see which plug-ins are loaded (my guess is that your app tries to load MSSQL plugin from another Qt version).

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

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

      An educated guess: the installed version of the MySQL librairies doesn't match the one used to build Qt 5.8 so the plugin fails to load and it tries to load the one from your distribution installed Qt.

      Therefore you will need to re-build the MySql plugin for your Qt 5.8 (only the plugin, there's no need to re-build all of Qt). There are already numerous threads about that specific topic. It boils down to:

      1. install the development package for MySQL from your distribution
      2. grab Qt's sources from the Maintenance Tool
      3. build the plugin following Qt's documentation

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

      jsulmJ 1 Reply Last reply
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      • SGaistS SGaist

        An educated guess: the installed version of the MySQL librairies doesn't match the one used to build Qt 5.8 so the plugin fails to load and it tries to load the one from your distribution installed Qt.

        Therefore you will need to re-build the MySql plugin for your Qt 5.8 (only the plugin, there's no need to re-build all of Qt). There are already numerous threads about that specific topic. It boils down to:

        1. install the development package for MySQL from your distribution
        2. grab Qt's sources from the Maintenance Tool
        3. build the plugin following Qt's documentation
        jsulmJ Offline
        jsulmJ Offline
        jsulm
        Lifetime Qt Champion
        wrote on last edited by
        #10

        @SGaist He is actually talking about "MS Sql server"

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

        V 1 Reply Last reply
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        • jsulmJ jsulm

          @SGaist He is actually talking about "MS Sql server"

          V Offline
          V Offline
          veera
          wrote on last edited by
          #11

          @jsulm
          you are correct when i ll run qmake --version it is showing that qt version is 5.5.1
          but when i see the QT installed directory there are lot of versions 5.5,5.6.5.7,5.8 versions are there .....now what to do shall i remove qt versions except 5.5.1

          jsulmJ 2 Replies Last reply
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          • V veera

            @jsulm
            you are correct when i ll run qmake --version it is showing that qt version is 5.5.1
            but when i see the QT installed directory there are lot of versions 5.5,5.6.5.7,5.8 versions are there .....now what to do shall i remove qt versions except 5.5.1

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #12

            @veera Just use qmake from the Qt version you want to use. It is perfectly valid to have more than one Qt version.

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

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            • V veera

              @jsulm
              you are correct when i ll run qmake --version it is showing that qt version is 5.5.1
              but when i see the QT installed directory there are lot of versions 5.5,5.6.5.7,5.8 versions are there .....now what to do shall i remove qt versions except 5.5.1

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #13

              @veera Did you actually try to do what already was suggested?
              "As @mrjj suggested you should do

              ldd PATH_TO_YOUR_EXE

              Also try to set QT_DEBUG_PLUGINS=1 before running your app to see which plug-ins are loaded (my guess is that your app tries to load MSSQL plugin from another Qt version)."

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

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              • V Offline
                V Offline
                veera
                wrote on last edited by
                #14

                Using terminal or through qt creator need to run qmake command and please post me the complete command of ldd to my project....

                jsulmJ 1 Reply Last reply
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                • V veera

                  Using terminal or through qt creator need to run qmake command and please post me the complete command of ldd to my project....

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #15

                  @veera Then run qmake, what is the problem? Use a complete path to qmake from Qt version you want to use:

                  PATH_TO_QT/bin/qmake
                  

                  What complete command for ldd do you need?
                  It is just

                  ldd PATH_TO_YOUR_EXECUTABLE
                  

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

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                  • V Offline
                    V Offline
                    veera
                    wrote on last edited by
                    #16

                    Okay thanks to all finally problem has solved after running qmake command ......

                    1 Reply Last reply
                    0
                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      Great !

                      Then please mark the thread as solved using the "Topic Tools" button so that other forum users may know a solution has been found :)

                      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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