Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\Visitor\AbstractVisitor" not found in /home/steele15/public_html/voice/concrete/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/Visitor/DropSchemaSqlCollector.php:18 Stack trace: #0 {main} thrown in /home/steele15/public_html/voice/concrete/vendor/doctrine/dbal/lib/Doctrine/DBAL/Schema/Visitor/DropSchemaSqlCollector.php on line 18