// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { maven { url 'https://maven.aliyun.com/repository/google' name 'Google' } jcenter() } dependencies { classpath 'com.android.tools.build:gradle:3.0.0' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } allprojects { repositories { maven { url 'https://maven.aliyun.com/repository/google' name 'Google' } jcenter() } } task clean(type: Delete) { delete rootProject.buildDir }