I download source of qt from website.
it goes nice . I install it.
But when I click on Qt Logo it not started.
so I try by command line then I found this error.
Failed to load core: /home/Qt/Tools/QtCreator/lib/qtcreator/plugins/QtProject/libCore.so: Cannot load library /home/Qt/Tools/QtCreator/lib/qtcreator/plugins/QtProject/libCore.so: (/usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.15’ not found (required by /home/Qt/Tools/QtCreator/lib/qtcreator/plugins/QtProject/../.././libQt5CLucene.so.5))
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