// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { google() jcenter() } dependencies { // gradle tools 2.2.2+ supports stable ndk // classpath 'com.android.tools.build:gradle:2.3.0' classpath 'com.android.tools.build:gradle:3.2.1' } } allprojects { repositories { google() jcenter() } } task clean(type: Delete) { delete rootProject.buildDir }