Fatal error: Uncaught Error: Class 'Doctrine\ORM\Mapping\Driver\YamlDriver' not found in /home/benjamincb/demos/acdg/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/SimplifiedYamlDriver.php:14 Stack trace: #0 {main} thrown in /home/benjamincb/demos/acdg/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/SimplifiedYamlDriver.php on line 14