buildscript { ext.kotlin_version = System.getenv("KOTLIN_VERSION") ?: '1.3.50' println "$project uses Kotlin $kotlin_version" repositories { mavenCentral() } dependencies { classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } apply plugin: 'java' apply plugin: 'kotlin' repositories { mavenCentral() jcenter() } dependencies { compile files("${rootProject.projectDir}/mockito-kotlin/build/libs/mockito-kotlin-${version}.jar") compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version" compile "org.mockito:mockito-core:2.23.0" testCompile "junit:junit:4.12" testCompile "com.nhaarman:expect.kt:1.0.0" }