add pseudo

config/services.yaml

@@ -7,6 +7,9 @@ parameters:
 
 services:
     # default configuration for services in *this* file
+    App\Security\UserProvider:
+        arguments:
+            $entityManager: '@doctrine.orm.entity_manager'
     _defaults:
         autowire: true      # Automatically injects dependencies in your services.
         autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.