deepin-compressor-6.0.3-alt1.x86_64 freedesktop-categories fail Main Categories consist of those categories that every conforming desktop environment MUST support.(http://standards.freedesktop.org/menu-spec/latest/apa.html). None found in /usr/share/applications/deepin-compressor.desktop. please, fix.; deepin-compressor-6.0.3-alt1.x86_64 freedesktop-desktop info desktop-file-validate utility printed the following message(s): /usr/share/applications/deepin-compressor.desktop: hint: value item "Archiving" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Utility; /usr/share/applications/deepin-compressor.desktop: hint: value item "Compression" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Utility;Archiving; /usr/share/applications/deepin-compressor.desktop: hint: value "Qt;Archiving;Compression;" for key "Categories" in group "Desktop Entry" does not contain a registered main category; application might only show up in a "catch-all" section of the application menu;