fix folder name

src/Bundle/ChillTaskBundle/config/services/event.yaml

@@ -0,0 +1,7 @@
+services:
+    Chill\TaskBundle\Event\Lifecycle\TaskLifecycleEvent:
+        arguments:
+            $em: '@Doctrine\ORM\EntityManagerInterface'
+            $tokenStorage: '@Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface'
+        tags:
+            - { name: kernel.event_subscriber }