Fatal error: Uncaught Error: Class 'Symfony\Component\Routing\Loader\AnnotationClassLoader' not found in D:\workspaces\liZiPingBack\vendor\sensio\framework-extra-bundle\src\Routing\AnnotatedRouteControllerLoader.php:31 Stack trace: #0 {main} thrown in D:\workspaces\liZiPingBack\vendor\sensio\framework-extra-bundle\src\Routing\AnnotatedRouteControllerLoader.php on line 31