Fatal error: Uncaught Error: Call to undefined function Symfony\Component\Security\Http\Firewall\trigger_deprecation() in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\security-http\Firewall\RemoteUserAuthenticationListener.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\security-http\Firewall\RemoteUserAuthenticationListener.php on line 21