buildscript { ext.kotlin_version = '1.2.60' ext.android_gradle_plugin_version = '3.1.3' repositories { jcenter() google() } dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } repositories { jcenter() google() } apply plugin: 'java' apply plugin: 'kotlin' dependencies { implementation "com.android.tools.build:gradle:$android_gradle_plugin_version" implementation "com.android.tools.build:gradle-api:$android_gradle_plugin_version" implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version" } compileKotlin { kotlinOptions { jvmTarget = "1.8" } } compileTestKotlin { kotlinOptions { jvmTarget = "1.8" } }