buildscript { ext.kotlin_version = "1.4.10" repositories { google() jcenter() } dependencies { classpath "com.android.tools.build:gradle:4.1.0" classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" } } allprojects { repositories { google() jcenter() } } task clean(type: Delete) { delete rootProject.buildDir }