Déclaration du service UserManager

app/config/services.yml

@@ -56,4 +56,9 @@ services:
 
     AppBundle\Service\Mattermost:
         arguments:
-            $url: '%mattermost_url%'
+            $url: '%mattermost_url%'
+
+    AppBundle\Service\UserManager:
+        arguments:
+        - "@doctrine.orm.entity_manager"
+        - "@security.password_encoder"