Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\Schema" not found in /var/www/apache/dev/cal/web/vendor/symfony/security-acl/Dbal/Schema.php:22 Stack trace: #0 {main} thrown in /var/www/apache/dev/cal/web/vendor/symfony/security-acl/Dbal/Schema.php on line 22