Android tests are failing with missing input files for the emulator

[jin]

Discovered in bazelbuild/continuous-integration#644, where using Bazel 0.25.1 with a stable version of the emulator (v29.x) results in missing input files for emulator/emulator64-x86 and emulator/emulator64-arm, causing builds to fail. The diff is here: bazelbuild/continuous-integration#644 (comment)

I'm marking this as a P0 because there's no way to download older emulator builds from AS or sdkmanager.

Currently, the workaround is to ask users to manually download an older build from http://dl.google.com/android/repository/emulator-linux-5395263.zip, which is a build that contains the missing binaries (Android emulator version 28.0.25.0).

[jin]

https://stackoverflow.com/questions/55956458/no-more-emulator64-x86-or-emulator64-arm-using-sdkmanager