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error while loading shared libraries libExtensionSystem.so.4 for qtreator



  • Hi,

    I use xubuntu version 20.10 and I want to manual install Qt with online installer from qt.

    If I try to start the new installed QtCreator I will get the error message:

    error while loading shared libraries libExtensionSystem.so.4: cannot open shared object file: No such file or directory
    

    I installed Qt in /opt/Extern/Entwicklung/Qt/ and set the variable

    export LD_LIBRARY_PATH=/opt/Extern/Entwicklung/Qt/Tools/QtCreator/lib/qtcreator/
    export PATH=/opt/Extern/Entwicklung/Qt/Tools/QtCreator/bin:$PATH
    

    But qtcreator couldn't be started.

    Where is the problem (or my mistake)? I think to set LD_LIBRAY_PATH should enough.

    Thank you for your help
    BR
    martin



  • Ok. I found the error. I set the g+s mode on my installation directory. After I removed the setguid bit I can start qtcreator without any problems.

    BR
    martin


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