This seems to be an essential step. I also had similar problems with recent build tool versions (tried several older versions but apparently not old enough...)Einsame Hirte wrote: ↑Tue Apr 06, 2021 1:40 am Got a boatload of compiler warnings (all or mainly about deprecated features), and it kept dying during linking (or whatever its called in java). Solved that by downgrading the build tools to 25.0.3 as suggested at in this Stack Overflow article
The build kept complaining about some "dx.jar" that could not be found.
Downgrading the build tools to 25.0.3 as described solved the problem.
And now my own personal build version of Andors Trail is happily running in the emulator!