Fatal error: Uncaught Error: Class "Doctrine\ORM\Mapping\Driver\YamlDriver" not found in /var/www/html/vendor/doctrine/orm/src/Mapping/Driver/SimplifiedYamlDriver.php:16 Stack trace: #0 {main} thrown in /var/www/html/vendor/doctrine/orm/src/Mapping/Driver/SimplifiedYamlDriver.php on line 16