Fatal error: Uncaught Error: Class "Doctrine\Common\DataFixtures\ReferenceRepository" not found in /var/www/html/API_Forum/vendor/doctrine/data-fixtures/src/ProxyReferenceRepository.php:19 Stack trace: #0 {main} thrown in /var/www/html/API_Forum/vendor/doctrine/data-fixtures/src/ProxyReferenceRepository.php on line 19