buildscript {
  repositories {
//    jcenter()
//    jcenter(){ url 'http://jcenter.bintray.com/'}
    maven{url 'http://maven.aliyun.com/nexus/content/groups/public/'}
    maven { url "https://jitpack.io" }
    google()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:3.2.1'
  }
}
 
allprojects {
  repositories {
//    jcenter()
    maven{url 'http://maven.aliyun.com/nexus/content/groups/public/'} 
    google()
  }
}