Room Persistence lib implementation in Kotlin

Question

I am implementing Room persistence lib in kotlin for my database implementation.

Following are my Entity, Dao and Database cla

Answer 1

I made an example similar using Java and used to have same problem and solution was add APT line apt "android.arch.persistence.room:compiler:1.0.0-alpha1"

without apply: apply plugin: 'kotlin-kapt'. Remove this line!!

You have to clear project and rebuild it before run again and try uninstall existing app on phone or Virtual device. Hope you help.