Fatal error: Uncaught Error: Class 'Doctrine\DBAL\Driver\AbstractMySQLDriver' not found in C:\xampp\htdocs\dpbb\vendor\doctrine\dbal\src\Driver\Mysqli\Driver.php:13 Stack trace: #0 {main} thrown in C:\xampp\htdocs\dpbb\vendor\doctrine\dbal\src\Driver\Mysqli\Driver.php on line 13