Room “Not sure how to convert a Cursor to this method's return type”: which method?

Question

Error:Not sure how to convert a Cursor to this method\'s return type
Error:Execution failed for task \':app:compileDebugJavaWithJavac\'.
Compilation failed; see the          


        

Answer 1

Make sure if there is

There is a problem with the query: [SQLITE_ERROR] SQL error or missing database (no such table: METRO)

error in your build log before the error you mentioned in your description. If it is, you may have forgotten to add your new entity Pojo to database class. something like this

@Database(entities = {Table.class,ForgottenTable.class}, version = 1) 
public abstract class Database extends RoomDatabase {
    //class codes
}