Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\SchemaException" not found in /home/zdpktgd/ptc/vendor.old/doctrine/dbal/src/Schema/Exception/NamedForeignKeyRequired.php:15 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/doctrine/dbal/src/Schema/Exception/NamedForeignKeyRequired.php on line 15