这不是 Android Studio 2.2 升级问题，而是昨天发布的 FB SDK.目前的解决方案是在 build.gradle 中恢复到以前的 FB SDK:

It's not Android Studio 2.2 upgrade issue, it's FB SDK released yesterday. For now a solution is to revert to previous FB SDK in build.gradle:

dependencies {
    // ...
    compile 'com.facebook.android:facebook-android-sdk:4.15.0'
}

这对我有用，将跟踪 FB 支持的更改日志和错误列表以查看正确的解决方案.

This worked for me, will track the change log and bug list on FB support to see the proper solution.