Android Failing: !build failed - export directory is empty!

Just started happening. Builds fails after about 2 mins with this error:

! build of 'default-android' failed. ! build failed - export directory is empty!

I've tried both "Internal" and "Gradle" build systems.
Also not using any external plugins.

Using 2018.2.16f1

 

I have a project that was building fine in Android yesterday and failed just now (says there's a compilation error, but it's fine locally), and I noticed in the build log that it's somehow picking up Unity 2018.2.17 even though 2018.2.16 is the latest I have via Unity Hub. So you might want to check that in your log and maybe try setting it back to 2018.2.16 in your config (I haven't tried that, yet).

 

Thanks, switching manually to 2018.2.16 fixed the build.
Guess 2018.2.17 not ready for prime time yet

 

I don't do automatic builds on commit, but it would be nice to have builds triggered when new Unity versions show up!