Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Schema\SchemaException' not found in /home/edmedu/www/mig.edmclass.com/admin.edmclass.com/vendor/doctrine/dbal/src/Schema/Exception/NamedForeignKeyRequired.php:15 Stack trace: #0 {main} thrown in /home/edmedu/www/mig.edmclass.com/admin.edmclass.com/vendor/doctrine/dbal/src/Schema/Exception/NamedForeignKeyRequired.php on line 15