I am learning to use kotlin to build my applicatio...

# announcements

[brucelee]

I am learning to use kotlin to build my application,but I've met some trouble ,here is my question: https://stackoverflow.com/questions/45397802/kotlin-start-application-crash?noredirect=1#comment77758059_45397802 . Is there any genius can help work this out?

[jk]

did you follow? https://kotlinlang.org/docs/tutorials/kotlin-android.html it looks like you're missing the kotlin-android plugin