Add this to your build.gradle (Project)
buildscript {
ext.kotlin_version = '1.1.60'
repositories {
google()
jcenter()
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
And this code is in your build.gradle (Module)
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
dependencies {
implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
}
This will update your version of Kotlin. You can find more at Kotlin Targeting Android