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Cannot get any query output from executable "/opt/Qt/6.2.2/gcc_64/bin/qmake"

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  • J Jorge_Adan
    7 Dec 2021, 16:59

    @JoeCFD In ~/.bash_profile:

    export LD_LIBRARY_PATH=/usr/local/lib64:/home/devuser/Qt/6.2.2/gcc_64/lib/:$LD_LIBRARY_PATH
    

    Then in terminal: source ~/.bash_profile.

    I also create an alias:

    alias qtcreator=$HOME/Qt/Tools/QtCreator/bin/qtcreator
    

    in order to force the newly installed qtcreator get called. If I don't, it calls: /usr/bin/qtcreator, which was installed as part of the CentOS 7 build as Qt4.

    I still get the same error:

    [devuser@localhost ~]$ qtcreator
    /home/devuser/Qt/Tools/QtCreator/bin/qtcreator: error while loading shared libraries: libQt6Core.so.6: cannot open shared object file: No such file or directory
    

    Concerning gcc:

    [devuser@localhost ~]$ gcc --version
    gcc (GCC) 10.1.0
    
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    JoeCFD
    wrote on 7 Dec 2021, 17:43 last edited by JoeCFD 12 Jul 2021, 17:48
    #21

    @Jorge_Adan In order to call your installed qt creator, you do this:
    export PATH=$HOME/Qt/Tools/QtCreator/bin/:$PATH:.:
    then your installed one will be in front of /usr/bin/qtcreator

    you need to do the same thing for LD_LIBRARY_PATH. There is order problem here. PATH settings decide which one will be looked for or executed first. It is important to know this since you have different Qt installations.

    J 1 Reply Last reply 7 Dec 2021, 21:02
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    • J Offline
      J Offline
      JoeCFD
      wrote on 7 Dec 2021, 17:47 last edited by
      #22

      @Jorge_Adan said in Cannot get any query output from executable "/opt/Qt/6.2.2/gcc_64/bin/qmake":

      [devuser@localhost ~]$ gcc --version
      gcc (GCC) 10.1.0
      gcc 10.1.0 may be good enough for Qt 6. Good luck!

      1 Reply Last reply
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      • J JoeCFD
        7 Dec 2021, 17:43

        @Jorge_Adan In order to call your installed qt creator, you do this:
        export PATH=$HOME/Qt/Tools/QtCreator/bin/:$PATH:.:
        then your installed one will be in front of /usr/bin/qtcreator

        you need to do the same thing for LD_LIBRARY_PATH. There is order problem here. PATH settings decide which one will be looked for or executed first. It is important to know this since you have different Qt installations.

        J Offline
        J Offline
        Jorge_Adan
        wrote on 7 Dec 2021, 21:02 last edited by Jorge_Adan 12 Jul 2021, 21:03
        #23

        @JoeCFD Yes, I already had my PATH setup like that.

        J J 2 Replies Last reply 7 Dec 2021, 22:07
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        • J Jorge_Adan
          7 Dec 2021, 21:02

          @JoeCFD Yes, I already had my PATH setup like that.

          J Offline
          J Offline
          JoeCFD
          wrote on 7 Dec 2021, 22:07 last edited by JoeCFD 12 Jul 2021, 22:08
          #24

          @Jorge_Adan show ldd /home/devuser/Qt/Tools/QtCreator/bin/qtcreator
          qtcreator uses relative path for qt libs.

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          • J Jorge_Adan
            7 Dec 2021, 21:02

            @JoeCFD Yes, I already had my PATH setup like that.

            J Offline
            J Offline
            JonB
            wrote on 8 Dec 2021, 17:36 last edited by
            #25

            @Jorge_Adan
            See the discussion now going on in https://forum.qt.io/topic/132610/qtcreator-6-0-can-t-start, I think it's same as yours?

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