Hints for gnome-calculator in main

org.gnome.Calculator.desktop ⚙ amd64

asv-description-para-markup-invalid
org.gnome.Calculator.appdata.xml:1380 - li
This description paragraph contains invalid markup. Currently, only <em/> and <code/> are permitted.
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-summary-has-dot-suffix
org.gnome.Calculator.appdata.xml:109 - கணித, அறிவியல் அல்லது பொருளாதார கணக்குகளை செய்கிறது.
The component summary should not end with a dot (`.`).
asv-nonstandard-gnome-extension
org.gnome.Calculator.appdata.xml:688 - 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.Calculator.appdata.xml:758 - http://www.gnome.org/donate/
Consider using a secure (HTTPS) URL for this web link.