Can't build after updating to kotlin 1.5.21, latest androidx releases and compose 1.1.0-alpha01

[ColtonIdle]

I typically use latest versions of everything. After compose was updated to 1.1.0-alpha01 today I updated that and kotlin to 1.5.21 and then androidx had a bunch of releases today. After updating everything I get this when I try to run. I have tried cleaning and running too with the same error.

I have not gotten a minimal repro project or anything more than this, but I figured I'd file preemptively in case the hilt team already knows that there's some kind of issue with compose/kotlin/lifecycle deps.

Class 'MyScreenViewModelFactory' is not abstract and does not implement abstract member public abstract fun <T : ViewModel> create(modelClass: Class<T>): T defined in androidx.lifecycle.ViewModelProvider.Factory

[ColtonIdle]

Looks like maybe lifecycle related?

Source-breaking change: ViewModelProvider has been rewritten in Kotlin. ViewModelProvider.Factory.create method now longer allows nullable generic. (I9b9f6)

https://developer.android.com/jetpack/androidx/releases/lifecycle#2.4.0-alpha03

I don't know if that's actually the issue. Just guessing here.

[ColtonIdle]

Solved! (thanks Ian Lake)

class MyScreenViewModelFactory(private val client: Client?) : ViewModelProvider.Factory {

    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
        return MyScreenViewModel(client) as T
    }
}

Just had to remove the ? after ViewModel, and then clean, and then rebuild.