Symfony version(s) affected: 5.2.0-beta1

Description

I just try to update to latest beta and it seems that providers config in security.yaml became mandatory when enabling new authenticator manager.

Without any providers i get the following error :

But in Symfony 5.1.7, it was not a big deal to not having a user provider.

How to reproduce

Remove any providers and using enable_authenticator_manager: true

Possible Solution

I would check if we have really one provider here:

If not throw an exception saying, you must provide a user_provider.

I'm ready to make a PR you are fine with this solution.

Additional context

I don't have any provider as I use aws cognito JWT system where user identity is in the token.