Fatal error: Uncaught Error: Class 'Doctrine\Common\DataFixtures\ReferenceRepository' not found in /home/lafaamicps/www/symfony/vendor/doctrine/data-fixtures/lib/Doctrine/Common/DataFixtures/ProxyReferenceRepository.php:34 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/doctrine/data-fixtures/lib/Doctrine/Common/DataFixtures/ProxyReferenceRepository.php on line 34