xreader-3.6.6-alt1.x86_64	freedesktop-desktop	warn	desktop-file-validate utility exited abnormally with the following message(s): /usr/share/applications/xreader.desktop: hint: value item "Viewer" in key "Categories" in group "Desktop Entry" can be extended with another category among the following categories: Graphics, or Office; /usr/share/applications/xreader.desktop: error: (will be fatal in the future): value "application/pdf;application/x-bzpdf;application/x-gzpdf;application/x-xzpdf;application/postscript;application/x-bzpostscript;application/x-gzpostscript;image/x-eps;image/x-bzeps;image/x-gzeps;application/x-dvi;application/x-bzdvi;application/x-gzdvi;image/vnd.djvu;image/vnd.djvu+multipage;image/tiff;image/*;application/vnd.comicbook-rar;application/vnd.comicbook+zip;application/x-cb7;application/x-cbr;application/x-cbt;application/x-cbz;application/x-ext-cb7;application/x-ext-cbr;application/x-ext-cbt;application/x-ext-cbzapplication/oxps;application/vnd.ms-xpsdocument;application/epub+zip;" for key "MimeType" in group "Desktop Entry" contains value "application/x-ext-cbzapplication/oxps" which is an invalid MIME type: "application/x-ext-cbzapplication/oxps" contains an invalid character in the subtype;