HI,
I have DS 2.5, I sometimes get message
The 'APKBuilder' plugin is required for building APKs.
You can download this plugin form the 'Plugins' menu.
If I touch the three-vertical-dots icon then Plugins, then Android back, it works.
In the past you could buy just the builder (instead of Premium for a month or life)
and that doesn't seem to let you build AABs.
Regards, ah