If you're getting an error such as An account with this email address already exists
, it means that you have created two different accounts. This happens if you register with a Social Account (Facebook, Twitter, GitHub or Google), then register again using our sign up form.
In this case, you need to remove one of these account, to do so:
Log out from the account associated with your email
Log in using the social account instead
Delete this account at www.gitbook.com/settings​
Log in again using your email
Associate the Social Account to your email account at www.gitbook.com/settings​