Android room persistent: AppDatabase_Impl does not exist

Question

My app database class

@Database(entities = {Detail.class}, version = Constant.DATABASE_VERSION)
public abstract class AppDatabase extends RoomDatabase {

            


        

Answer 1

Reading the example here: Room Example

I fixed this error just using the correct (I guess it is) annotationProcessorFile, as follows:

annotationProcessor "android.arch.persistence.room:compiler:"

Also, I upgraded to 2.2.0 either in Room Version as in Lifecycle version.

Once synchronized the graddle, I could start working with Room.

So, Good luck! And let the code be with you!