Symfony version(s) affected

7.0.3

Description

The AddScheduleMessengerPass.php#L38-L40 wrongly assumes every service tagged with "messenger.receiver" has an alias, but the alias is technically optional: MessengerPass.php#L266.

How to reproduce

Add a messenger receiver to your application and just tag it without specifying an alias:

App\Receiver\MyReceiver:
  class: App\Receiver\MyReceiver
  tags: [ { name: 'messenger.receiver' } ]

Then add the symfony/scheduler package to your project. The compiling of the container will fail with

In AddScheduleMessengerPass.php line 39:

  [ErrorException]
  Warning: Undefined array key "alias"

Possible Solution

No response

Additional Context

No response