Fatal error: Uncaught Error: Class "Doctrine\DBAL\Event\SchemaEventArgs" not found in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\doctrine\dbal\src\Event\SchemaAlterTableEventArgs.php:17 Stack trace: #0 {main} thrown in C:\Servers\htdocs\inventory.fitzalan.co.uk\vendor\doctrine\dbal\src\Event\SchemaAlterTableEventArgs.php on line 17