qcad-3.20.1.3-alt1.M80P.1.x86_64 freedesktop-desktop info desktop-file-validate utility printed the following message(s): /usr/share/applications/qcad.desktop: hint: value "Graphics;VectorGraphics;Engineering;Construction;2DGraphics;Science;" for key "Categories" in group "Desktop Entry" contains more than one main category; application might appear more than once in the application menu;