ext { sourceCompatibility = JavaVersion.VERSION_1_8 }// Top-level build file where you can add configuration options common to all sub-projects/modules. buildscript { repositories { // google() // jcenter() //对应google() maven {url 'https://maven.aliyun.com/repository/google'} //对应jcenter() maven {url 'https://maven.aliyun.com/repository/jcenter'} //公共库 maven {url 'https://maven.aliyun.com/repository/public'} maven { url "https://jitpack.io" } } dependencies { classpath 'com.android.tools.build:gradle:4.2.0' // NOTE: Do not place your application dependencies here; they belong // in the individual module build.gradle files } } allprojects { repositories { // google() // jcenter() maven {url 'https://maven.aliyun.com/repository/google'} maven {url 'https://maven.aliyun.com/repository/jcenter'} maven {url 'https://maven.aliyun.com/repository/public'} maven {url 'https://jitpack.io'} } } task clean(type: Delete) { delete rootProject.buildDir }