Android Annotations With Kotlin And Build Tools 2.3.0

To use Android Annotations prior to 2.3.0 a person would do this: dependencies { apt 'org.androidannotations:androidannotations:$AAVersion' compile 'org.androidannotations:

Solution 1:

You must use kapt (and apply plugin: 'kotlin-kapt') instead annotationProcessor if you want to use Kotlin code for annotation processing (you can continue use annotationProcessor only if you don't generate any code from Kotlin sources, like in your example, where you have MainActivity written in Kotlin)