Fatal error: Uncaught Error: Class "Symfony\Component\Console\Event\ConsoleEvent" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\symfony\console\Event\ConsoleAlarmEvent.php:18 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\symfony\console\Event\ConsoleAlarmEvent.php on line 18