Sign in error for name gmail com on Android device SOLVED!

Sign in error for name gmail com on Android device SOLVED!All of a sudden logging in to my Google Play account was giving an error and I seemed to be locked out!  Bad situation to be in � I couldn�t upgrade any of my apps � and I needed to do an upgrade because WhatsApp had expired � with error �This version of WhatsApp is too old � you need to upgrade�� OK, but I first needed to solve the error