Android Instant App : Feature module : The module cannot be android library

Question

I started converting my app to support instant feature, following the Google IO tutorial. I got the build running correctly. I've disabled aapt2 and enableNewResourceProcessing as i was running into build errors. The module builds without errors after disabling those two flags but when i go to edit configuration of the base Feature of the app i get The module cannot be android library.

Does anyone know what causes this issue. I'm using com.android.feature plugin in the feature module's build along with build flavours and build types.

Answer 1

A feature module is treated as a library. It doesn't have an application ID. So, "The module cannot be android library" error is generated.

Answer 2

Don't run your feature. Run your instantapp instead and set feature URL in it:

Run -> Edit Configurations -> Android App -> instantapp -> General -> Launch Options -> Launch = URL -> URL = https://example.com/my_feature

Answer 3

The problem I was facing was that there was a build configuration for the instant feature as well. Since each instant feature is considered as an android library, Studio throws errors saying module cannot be android library. To solve this i simply removed the build configuration via

Run -> Edit configuration -> Click on - button

Keep your base app module configuration and delete all other feature configurations.