I am using loginActivity in android.
ERROR
can not find symbol class Builder
I have also imported the file:
I solved in my project by downgrading play-services to:
compile 'com.google.android.gms:play-services:6.1.71'
in dependencies in gradle file.
It is not available because it is deprecated. Use GoogleApiClient instead.
Start integrating Google+ : This is the official documentation for implementing Google+ client in your Android app for login and other requirements. Please follow this and not the auto-generated code from Android studio (until the code gets updated with newer implementation).
P.S. The other answer suggests to use older version of PlusClient, which is a wrong approach. You should be using newer code Instead of using older play services.