Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Schema\Visitor\AbstractVisitor' not found in /home/itscm/dev.its.cm/webserivesits/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/Visitor/DropSchemaSqlCollector.php:18 Stack trace: #0 {main} thrown in /home/itscm/dev.its.cm/webserivesits/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/Visitor/DropSchemaSqlCollector.php on line 18