Fatal error: Uncaught Error: Class "Symfony\Component\Security\Http\Firewall" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\security-bundle\EventListener\FirewallListener.php:26 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\security-bundle\EventListener\FirewallListener.php on line 26