I'm getting an error when calling getToken, regarding failed unsubscription from Firebase, is this normal?

[ifigueroap]

Whenever I call FirebaseMessaging.getToken I get this error on the console:

I'm wondering whether this is normal, and how can we make it so it doesn't appear/happen.

Thanks

[robingenz]

This warning should not appear. Maybe this SO thread helps you: https://stackoverflow.com/q/58325574/6731412

[ifigueroap]

Thank you for your reply, I will look into it then.

[ifigueroap]

I'm not sure I get what I should do: downgrade to version 6.X?

[robingenz]

No, not that but maybe the other two answers will help. I have not had this warning so far and therefore have no experience with it.