Hints for gnome-boxes in universe

org.gnome.Boxes.desktop ⚙ amd64

translations-not-found
Unable to add languages information, even though a translation tag was present in the MetaInfo file. Please check that its value is set correctly, and all locale files are placed in the right directories (e.g. /usr/share/locale/*/LC_MESSAGES/ for Gettext .mo files).

asv-unknown-tag
org.gnome.Boxes.appdata.xml:520 - p
Found invalid tag. Non-standard tags should be prefixed with `x-`. AppStream also provides the <custom/> tag to add arbitrary custom data to metainfo files. This tag is read by AppStream libraries and may be useful instead of defining new custom toplevel or `x-`-prefixed tags if you just want to add custom data to a metainfo file.
asv-nonstandard-gnome-extension
org.gnome.Boxes.appdata.xml:530 - kudos
This tag is a GNOME-specific extension to AppStream and not part of the official specification. Do not expect it to work in all implementations and in all software centers.
asv-unknown-tag
org.gnome.Boxes.appdata.xml:521 - ul
Found invalid tag. Non-standard tags should be prefixed with `x-`. AppStream also provides the <custom/> tag to add arbitrary custom data to metainfo files. This tag is read by AppStream libraries and may be useful instead of defining new custom toplevel or `x-`-prefixed tags if you just want to add custom data to a metainfo file.
asv-url-not-secure
org.gnome.Boxes.appdata.xml:592 - http://www.gnome.org/friends/
Consider using a secure (HTTPS) URL for this web link.