Can't login to Gmail via Mail on Mac - Hangs After Password Entered

A couple days ago, Mail stopped connecting automatically to my Gmail account. Upon trying to sign in, I enter my password and am met with a hung grey screen. It’ll sit there indefinitely.

https://discussions.apple.com/servlet/JiveServlet/downloadImage/2-33000227-947800/Screen+Shot+2018-02-09+at+4.45.37+AM.png


So here is the solution:

On your Mac go to “Keychain Access” and on the top search for the problematic gmail address and delete that entry.

https://discussions.apple.com/servlet/JiveServlet/downloadImage/947957/Screen+Shot+2018-02-10+at+12.08.13+AM.png