Build is failing for many apps due to "some licenses have not been accepted"

Hey,

As the title says. I think it mostly affects app using build tools version 28.0.3. Example from EteSync: https://f-droid.org/wiki/page/com.etesync.syncadapter/lastbuild_50

I think that at the very least someone should manually accept the license, but in the future, probably just automatically accept the licenses like this: yes | sdkmanager --licenses

Taken from https://stackoverflow.com/questions/38096225/automatically-accept-all-sdk-licences