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

I meet with the problem, because I forget @Dao annotation

@Dao
public interface SearchHistoryDao {
    @Query("SELECT * FROM search_history")
    List getAll();

    @Insert
    void insertAll(SearchHistory... histories);

    @Delete()
    void delete(SearchHistory history);
}

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