Type mismatch. Required: DataStore<UserPreferencesRepository.UserPreferences> Found: DataStore<Preferences>

[MmingY]

Problem:
I followed every step mentined in the Codelab tutorial https://developer.android.com/codelabs/android-preferences-datastore?hl=zh-cn#5, but I encountered this problem"Type mismatch. Required: DataStore<UserPreferencesRepository.UserPreferences> Found: DataStore".

TasksActivity
viewModel = ViewModelProvider( this, TasksViewModelFactory( TasksRepository, UserPreferencesRepository(dataStore, this) ) ).get(TasksViewModel::class.java)

UserPreferencesRepository
class UserPreferencesRepository constructor( private val userPreferencesStore: DataStore<UserPreferences>, context: Context )... data class UserPreferences(val showCompleted: Boolean)