我将我的项目更新为最新的 Play services classpath 'com.google.gms:google- services:1.5.0-beta2'。我还在我的 app.gradle 文件中使用了最新版本的 playservices：

compile 'com.google.android.gms:play-services-location:8.3.0'
compile 'com.google.android.gms:play-services-gcm:8.3.0'

但是，当我编译时，Gradle 抛出异常如下

Error:Execution failed for task ':app:processDebugGoogleServices'. > File google-services.json is missing from module root folder. The Google Services Plugin cannot function without it.