How to Fix android 4.3 error “Error retrieving information from server. [RPC:S-3:AEC-0]”

Hai Friends, Yesterday i got a new LG Nexus 4 from my brother Shrinivasan :-). I updated my phone Android 4.2.2 to 4.3. After upgrading, when i try to install from Google play store, i got this “Error retrieving information from server. [RPC:S-5:AEC-0]” error. After goggling i got the solution.  Simple solution for the problem:  Just