I am trying to write a simple app using Kotlin and Room Persistence Library. I followed the tutorial in the Android Persistence codelab.
Here is my AppDatabase<
In my case, in build.gradle, when you have "annotationProcessor" you need to duplicate with "kapt" and it works.
compile "android.arch.persistence.room:runtime:$room_version"
annotationProcessor "android.arch.persistence.room:compiler:$room_version"
kapt "android.arch.persistence.room:compiler:$room_version"