Fatal error: Uncaught Error: Class "Doctrine\DBAL\Event\SchemaEventArgs" not found in D:\trms\htdocs\trms3\vendor\doctrine\dbal\lib\Doctrine\DBAL\Event\SchemaAlterTableRemoveColumnEventArgs.php:16 Stack trace: #0 {main} thrown in D:\trms\htdocs\trms3\vendor\doctrine\dbal\lib\Doctrine\DBAL\Event\SchemaAlterTableRemoveColumnEventArgs.php on line 16