Hints for mate-user-admin in main

mate-user-admin.desktop ⚙ amd64

asv-cid-desktopapp-is-not-rdns
:3 - mate-user-admin.desktop
The component ID is not a reverse domain-name. Please update the ID to avoid future issues and be compatible with all AppStream implementations. You may also consider to update the name of the accompanying .desktop file to follow the latest version of the Desktop-Entry specification and use a rDNS name for it as well. In any case, do not forget to mention the new desktop-entry in a <launchable/> tag for this component to keep the application launchable from software centers and the .desktop file data associated with the metainfo data.
screenshot-download-error
Error while downloading screenshot from 'https://github.com/zhuyaliang/images/blob/master/user-admin-001.png': URL was not found on the server.
This might be a temporary server issue, or the screenshot is no longer available.
screenshot-download-error
Error while downloading screenshot from 'https://github.com/zhuyaliang/images/blob/master/user-admin-001.png': URL was not found on the server.
This might be a temporary server issue, or the screenshot is no longer available.
icon-scaled-up
Icon file 'mate-user-admin_user-admin.png' was scaled up from 48x48px to 64x64px. Please try to supply a bigger icon.

asv-cid-contains-hyphen
:3 - mate-user-admin.desktop
The component ID contains a hyphen/minus. Using a hyphen is strongly discouraged, to improve interoperability with other tools such as D-Bus. A good option is to replace any hyphens with underscores (`_`).
asv-unknown-tag
:102 - updatecontact
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-desktop-app-launchable-omitted
-
This `desktop-application` component has no `desktop-id` launchable tag, however it contains all the necessary information to display the application. The omission of the launchable entry means that this application can not be launched directly from installers or software centers. If this is intended, this information can be ignored, otherwise it is strongly recommended to add a launchable tag as well.
asv-content-rating-missing
-
This component has no `content_rating` tag to provide age rating information. You can generate the tag data online by answering a few questions at https://hughsie.github.io/oars/