Hilt Gradle Plugin fails with AGP 9.0.0-alpha06 due to legacy variant APIs usage

[ychescale9]

This is one of the breaking changes in AGP 9 (see https://developer.android.com/build/releases/agp-preview):

An exception occurred applying plugin request [id: 'com.google.dagger.hilt.android']
> Failed to apply plugin 'com.google.dagger.hilt.android'.
   > API 'applicationVariants' is obsolete.
     It will be removed in version 10.0 of the Android Gradle plugin.
     The legacy variant API is disabled by default in AGP 9.0, but can be re-enabled by adding 
         android.enableLegacyVariantApi=true
     to this project's gradle.properties file.

Workaround: android.enableLegacyVariantApi=true android.newDsl=false

[bcorso]

Thanks for the report!

Just FYI, some features are missing from the new AGP 9 APIs that prevent us from migrating. We're currently working with the AGP team to add these features into the new API. Will update here once we have that fixed.

[liutikas]

Any updates on the progress?

[bcorso]

This work is complete (e92e3f3) but unfortunately it requires two fixes that are only available on AGP 9.0.0-beta05+so it will force Hilt users onto AGP 9 once we release it.

For now, I've rolled the change back (0a5b42c) so that we can do one last Dagger release without this change for users who are on AGP 8. Then, we'll roll it forward and do another release with this change once AGP 9 is stable.