Updated to Android Studio 3.0. Getting a "Kotlin not configured" error

Question

I just updated to Android Studio 3.0 and I'm getting this error with an existing project:

Kotlin not configured

When I go to Tools>Kotlin>Configure Kotlin in Project, I get an error saying "no configurators available". Also get the error below with the red java:

I've also tried:

• Restarting
• Clean and Rebuild
• Invalidate caches/restart.

Answer 1

I first tried with invalidate cache/ restart option but it doesn't help me.

When I updated Kotlin to 1.1.60 in project's gradle file, problem is solved.

Also, use this in app's gradle for stdlib

implementation "org.jetbrains.kotlin:kotlin-stdlib:1.1.60"  

instead of

implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:1.1.60" 

Answer 2

In Android Studio, click on File -> Invalidate Caches / Restart... , then select "Invalidated and Restart". This solved my problem.