buildscript { ext.kotlin_version = '1.0.2' repositories { mavenCentral() } dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } apply plugin: 'kotlin' repositories { mavenCentral() } dependencies { compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" testCompile 'junit:junit:4.12' testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version" }