ktechlab-0.50.0-alt1.x86_64	freedesktop-desktop	info	desktop-file-validate utility printed the following message(s): /usr/share/applications/kf5/org.kde.ktechlab.desktop: hint: value "Qt;KDE;Education;Science;Electronics;" for key "Categories" in group "Desktop Entry" contains more than one main category; application might appear more than once in the application menu;