解决Unknown host ‘d29vzk4ow07wi7.cloudfront.net’. You may need to adjust the proxy settings in Gradle
在总的 build.gradle 中加入阿里云镜像，注意要放在 jcenter() 的上边 maven{url ‘https://maven.aliyun.com/repository/google’} maven{url ‘https://maven.aliyun.com/repository/jcenter’} maven{url ‘https://maven.aliyun.com/nexus/content/groups/public’}
