buildscript { repositories { google() jcenter() maven { url 'https://maven.google.com/' } } dependencies { classpath 'com.android.tools.build:gradle:3.1.1' } } allprojects { repositories { google() jcenter() maven { url 'https://maven.google.com/' } } } rootProject.buildDir = '../build' subprojects { project.buildDir = "${rootProject.buildDir}/${project.name}" project.evaluationDependsOn(':app') } task clean(type: Delete) { delete rootProject.buildDir } task wrapper(type: Wrapper) { gradleVersion = '2.14.1' }