Google login, how do I enable to existing accounts?

[eduKit]

I had the same issue. Here is a link

Google and Facebook Login

I am able to login my user with their username or email. But when they login or signup using Google or Facebook, they can only login that way using that information and cannot login using their username/email or password. And vice versa (users that signup without going through Google or Facebook initally cannot login in that way using their email account) Any ideas on how to fix this