Fatal error: Uncaught Error: Class 'Symfony\Component\Security\Http\Firewall\AbstractListener' not found in C:\Apache24\htdocs\cwbts\vendor\symfony\security-http\Firewall\AccessListener.php:33 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\cwbts\vendor\symfony\security-http\Firewall\AccessListener.php on line 33