Error: The email address is already in use by another account.

[lewisnangle]

How to reproduce these conditions

Sample name or URL where you found the bug

https://github.com/firebase/functions-samples/blob/master/spotify-auth/functions/index.js

My code is the same as in the sample

The Error i am getting:

Error: The email address is already in use by another account.
at FirebaseAuthError.Error (native)
at FirebaseAuthError.FirebaseError [as constructor] (/user_code/node_modules/firebase-admin/lib/utils/error.js:25:28)
at new FirebaseAuthError (/user_code/node_modules/firebase-admin/lib/utils/error.js:90:23)
at Function.FirebaseAuthError.fromServerError (/user_code/node_modules/firebase-admin/lib/utils/error.js:114:16)
at /user_code/node_modules/firebase-admin/lib/auth/auth-api-request.js:350:45
at process._tickDomainCallback (internal/process/next_tick.js:135:7)

The code had been working as expected for the past couple of weeks. Now i am getting an error that the user email is already in use by another account when i try to sign in to an account i have previously signed into. This does not seem correct as in the code it seems that it should update the user rather than try and create another account when one already exists? Although it does work, and an access token is saved in the database, it does not redirect to the index.html page and show the users login info.

[nicolasgarnier]

@lewisnangle It could happen if the ID of the Spotify user is now different. Could you check what User ID is used and make sure it's the same as the existing user? (you can see the users in the Firebase console).

For this you need to print L.115

It's really the only thing that would explain it :)

[lewisnangle]

Yeah that's what was wrong! thanks very much for the help