Fatal error: Uncaught Error: Class "Doctrine\DBAL\Schema\Visitor\AbstractVisitor" not found in C:\xampp\htdocs\BK\be_qr_garantia\vendor\doctrine\dbal\src\Schema\Visitor\DropSchemaSqlCollector.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\BK\be_qr_garantia\vendor\doctrine\dbal\src\Schema\Visitor\DropSchemaSqlCollector.php on line 21