I installed the Kotlin plugin into my app (v. v1.1.1-release-Studio2.2-1) and then selected "Configure Kotlin in Project" I selected compiler and runtime version
This is what worked for me: Using Gradle 4.8.1
buildscript {
ext.kotlin_version = '1.1.1'
repositories {
jcenter()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.0'}
}
allprojects {
repositories {
mavenLocal()
jcenter()
google()
maven {
url "$rootDir/../node_modules/react-native/android"
}
maven {
url 'https://dl.bintray.com/kotlin/kotlin-dev/'
}
}
}