Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Event\SchemaEventArgs' not found in C:\Apache24\htdocs\fixedasset\vendor\doctrine\dbal\lib\Doctrine\DBAL\Event\SchemaDropTableEventArgs.php:12 Stack trace: #0 {main} thrown in C:\Apache24\htdocs\fixedasset\vendor\doctrine\dbal\lib\Doctrine\DBAL\Event\SchemaDropTableEventArgs.php on line 12