Default [Q] Google+ Integration

I am developing an application which can share some text(and image) on Google+.
I followed the tutorial in google site:, but at onConnectionFailed(ConnectionResult connectionResult) the connectionResult.hasResolution() always returns false.

I have searched and found out that connectionResult.hasResolution() returns true if calling startResolutionForResult(Activity, int) will start any intents requiring user interaction, but I don't have any idea what that means, so, my questions are:

1. What doaes that mean?
2. How can I connect to Google+?

Thank you in advance