[SOLVED] Dagger/MissingBinding java.util.Map<java.lang.Class<? extends ViewModel>,Provider<ViewModel>> cannot be provided without an @Provides-annotated method

Dagger/MissingBinding java.util.Map<java.lang.Class<? extends ViewModel>,Provider<ViewModel>> cannot be provided without an @Provides-annotated method

This is how I'm trying to provide my ViewModelFactory:

@Suppress("UNCHECKED_CAST")
@Singleton
class ViewModelFactory @Inject constructor(
    private val viewModels: MutableMap<Class<out ViewModel>, Provider<ViewModel>>
) : ViewModelProvider.Factory {

    override fun <T : ViewModel?> create(modelClass: Class<T>): T = viewModels[modelClass]?.get() as T
}

@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER)
@kotlin.annotation.Retention(AnnotationRetention.RUNTIME)
@MapKey
annotation class ViewModelKey(val value: KClass<out ViewModel>)

And this is how I'm binding the ViewModelFactory:

@Suppress("unused")
@Module
abstract class ViewModelModule  {
    @Binds
    internal abstract fun bindViewModelFactory(factory: ViewModelFactory): ViewModelProvider.Factory

    @Binds
    @IntoMap
    @ViewModelKey(MainViewModel::class)
    internal abstract fun mainViewModel(viewModel: MainViewModel): ViewModel
}

I'm receiving the following error during build:

di/Injector.java:9: error: [Dagger/MissingBinding] java.util.Map<java.lang.Class<? extends androidx.lifecycle.ViewModel>,javax.inject.Provider<androidx.lifecycle.ViewModel>> cannot be provided without an @Provides-annotated method.

From my Activity I'm trying to receive the ViewModelFactory this way:

@Inject
lateinit var viewModelFactory: ViewModelProvider.Factory

Solution

After digging a little bit more I found the issue. It's completely un-related to the code I'm using. It regards Kotlin 1.3.30.

Here some more information about it.

Downgrading to Kotlin 1.3.21 resolved the problem.