```@Module class AModule { @Provides fun p...

# announcements

[debug]

@Module
class AModule {
    @Provides
    fun provideListString(): List<List<String>> {
        return listOf(listOf("Test"))
    }
}

class TestActivity: Activity() {
    @Inject
    lateinit var listString: List<List<String>>

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
    }
}

This fails upon build with:

Error:java.util.List<? extends java.util.List<java.lang.String>> cannot be provided without an @Provides- or @Produces-annotated method.
      java.util.List<? extends java.util.List<java.lang.String>> is injected at
          com.sample.kotlinandroidplayground.TestActivity.listString
      com.sample.kotlinandroidplayground.TestActivity is injected at
          com.sample.kotlinandroidplayground.AComponent.inject(arg0)

. Why? I think this has something to do with nested generics. Using Dagger 2.5