Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\ParameterBag" not found in D:\NTG_App\www\TIL_Production_Monitoring\vendor\symfony\http-foundation\ServerBag.php:21 Stack trace: #0 {main} thrown in D:\NTG_App\www\TIL_Production_Monitoring\vendor\symfony\http-foundation\ServerBag.php on line 21