Unable to setup Mail on Mac
Unable to setup Mail on Mac. I have two Google accounts; each time I run the Mail setup, which opens Safari (Google requires completing authentication in your web browser. After authentication, setup will continue in Internet Accounts), and complete the Google login (Sign in to continue to macOS), I'm confronted with "This account already exists. You are already signed-in to the account ***@gmail.com."
MacBook Pro 13″, macOS 10.15