hi all. I'm initializing two `ViewModel`s however ...

# compose-android

[Alexandru Gheorghe]

hi all. I'm initializing two `ViewModel`s however my app crashes with error (see 🧵) - anyone else encountered this issue?

[Alexandru Gheorghe]

java.lang.RuntimeException: Cannot create an instance of class  viewmodel

[Alexandru Gheorghe]

MainActivity.kt:

val viewModelOne: ViewModelOne = viewModel()
                    val viewModelTwo: ViewModelTwo = viewModel()

                    Places.initialize(this, BuildConfig.PLACES_API_KEY)
                    val placesClient = Places.createClient(this)

                    Screen(
                        modifier = Modifier,
                        context = this,
                        canNavigateBack = true,
                        viewModelOne = viewModelOne,
                        viewModel = viewModelTwo,
                        placesClient = placesClient,
                        country = "US"
                    )

where Screen is:

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun Screen(
    modifier: Modifier = Modifier,
    context: Context,
    canNavigateBack: Boolean,
    viewModelOne: ViewModelOne,
    viewModelTwo: ViewModelTwo,
    placesClient: PlacesClient,
    country: String  /** ISO 3166-1 Alpha-2 */
) {

my ViewModels are in the following manner:

ViewModelOne

class ViewModelOne(
    <a bunch of private val>
) : ViewModel()

ViewModelTwo

class ViewModelTwo : ViewModel() {

[Sergey Y.]

Your viewmodel have no default empty constructor. You need to create viewmodel factory, more details here https://developer.android.com/topic/libraries/architecture/viewmodel/viewmodel-factories