If you tried to sign up for Steemit account via your Facebook account, and this error message appears:-
"Facebook login didn't provide any email addresses. Please make sure your Facebook account has a primary email address and try again."
You probably had exited halfway during your prior attempt(s) to sign up, and here's how to fix this error.
- Log in to your Facebook account
- Go to "Settings"
- Find "Apps" on the left column
- Remove "Steemit" app (It is there when you attempted to sign up for the very first time)
You are ready to sign up all over again at Steemit after removing the app. Bear in mind that if you have already entered a username or being prompt of a username, that username will most probably not be available anymore, so you will need another one.