Fatal error: Uncaught Error: Interface 'Doctrine\Common\EventSubscriber' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/easy-extends-bundle/Mapper/DoctrineORMMapper.php:18 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/easy-extends-bundle/Mapper/DoctrineORMMapper.php on line 18