Hints for ffado-mixer-qt4 in main

ffado.org-ffadomixer.desktop ⚙ all

internal-unknown-tag
The generator emitted a tag 'internal-unknown-tag' which is unknown. This is a bug in the metadata generator, please file a bugreport.
asv-type-property-required
:9 - translation ()
This tag requires a type property.
asv-tag-empty
:9 - translation
The mentioned tag is empty, which is highly likely not intended as it should have content.
screenshot-download-error
Error while downloading screenshot from 'http://ffado.org/appdata/ffado-mixer-screenshot.png': URL was not found on the server.
This might be a temporary server issue, or the screenshot is no longer available.

asv-cid-maybe-not-rdns
:4 - ffado.org-ffadomixer.desktop
The component ID might not follow the reverse domain-name schema (the TLD used by it is not known to the validator).
asv-screenshot-media-url-not-secure
:21 - http://ffado.org/appdata/ffado-mixer-screenshot.png
Consider using a secure (HTTPS) URL to reference this screenshot image or video.
asv-url-not-secure
:26 - http://ffado.org/
Consider using a secure (HTTPS) URL for this web link.
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
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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/