| 切换到国内的Maven镜像仓库。修改项目根目录下 build.gradle 文件,将 jcenter() 或者 mavenCentral() 替换掉即可。可以用国内的仓库代替:
 阿里的仓库地址:http://maven.aliyun.com/nexus/content/groups/public/OSChina的仓库地址:http://maven.oschina.net/content/groups/public/
 buildscript {
 
 repositories {
 maven{ url 'http://maven.aliyun.com/nexus/content/repositories/central/'}
 google()
 jcenter()
 }
 dependencies {
 classpath 'com.android.tools.build:gradle:3.1.4'
 
         // NOTE: Do not place your application dependencies here; they belong// in the individual module build.gradle files
 }
 }
 allprojects {repositories {
 maven{ url 'http://maven.aliyun.com/nexus/content/repositories/central/'}
 google()
 jcenter()
 }
 }
 task clean(type: Delete) {delete rootProject.buildDir
 }
 |