pcmanfm-qt-0.8.0-alt1.M70T.1.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/pcmanfm-qt-desktop-pref.desktop. please, fix.; pcmanfm-qt-0.8.0-alt1.M70T.1.x86_64 freedesktop-desktop info desktop-file-validate utility printed the following message(s): /usr/share/applications/pcmanfm-qt.desktop: hint: value item "FileManager" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: System;FileTools; /usr/share/applications/pcmanfm-qt.desktop: warning: value "x-directory/normal;inode/directory;" for key "MimeType" in group "Desktop Entry" contains value "x-directory/normal" which is a MIME type that should probably not be used: "x-directory" is an old media type that should be replaced with a modern equivalent; desktop-file-validate utility printed the following message(s): /usr/share/applications/pcmanfm-qt-desktop-pref.desktop: hint: value item "DesktopSettings" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Settings; /usr/share/applications/pcmanfm-qt-desktop-pref.desktop: hint: value "Qt;DesktopSettings;" 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;