Cannot create an instance of class ViewModel kotlin

Question

Here is my code

class BookmarkViewModel(app: Application) : AndroidViewModel(app) {

    private val dao = BookmarkDb.get(app).bookmarkDao()

    companion o         


        

Answer 1

in, my case I was added private set in DatabaseClass :| I removed it.

  private var INSTANCE: NoteDatabase? = null
            private set

to :

private var INSTANCE: NoteDatabase? = null

this problem take my 2 hours :|||