_onAuthStageChangedHandler() throws an exception when the currentUser is null in:
_authStateChangedControllers[id].add(currentUser);
Exception:
NoSuchMethodError: The method 'add' was called on null.
Receiver: null
Tried calling: add(null)

@herkulano
The issue at https://github.com/flutter/flutter/issues/32482 has been closed and moved here. Future collaboration on this issue will be done here.
Hi @herkulano
are you still experiencing this issue with the latest version of Flutter firebase_auth?
If so can you please provide your flutter doctor -v?
Also, to better address the issue, would be helpful
if you could post a self contained app on github
or the steps to reproduce it.
Thank you
I no longer have the issue, I don't know when it stopped, but it was some time ago.
Hi @herkulano
I'm glad you solved the issue,
thank you for letting me know
Most helpful comment
@herkulano
The issue at https://github.com/flutter/flutter/issues/32482 has been closed and moved here. Future collaboration on this issue will be done here.