Fatal error: Uncaught Error: Class "Composer\Script\Event" not found in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\flex\src\Event\UpdateEvent.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\retrodex\helpdesk\vendor\symfony\flex\src\Event\UpdateEvent.php on line 17