Hints for gnome-contacts in main

org.gnome.Contacts.desktop ⚙ amd64

asv-tag-empty
org.gnome.Contacts.appdata.xml:313 - ul/li
The mentioned tag is empty, which is highly likely not intended as it should have content.
asv-custom-key-duplicated
org.gnome.Contacts.appdata.xml:1088 - Purism::form_factor
A key can only be used once.
screenshot-save-error
Unable to store screenshot for 'https://wiki.gnome.org/Apps/Contacts?action=AttachFile&do=get&target=appdata.png': Could not load source screenshot for storing: Unrecognized image file format

asv-nonstandard-gnome-extension
org.gnome.Contacts.appdata.xml:983 - 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-url-not-secure
org.gnome.Contacts.appdata.xml:1002 - http://www.gnome.org/friends/
Consider using a secure (HTTPS) URL for this web link.
asv-developer-name-tag-deprecated
org.gnome.Contacts.appdata.xml:1005 -
The toplevel `developer_name` element is deprecated. Please use the `name` element in a `developer` block instead.
asv-developer-info-missing
org.gnome.Contacts.appdata.xml -
This component contains no `developer` element with information about its author.