Fatal error: Uncaught Error: Interface 'Symfony\Component\Form\DataTransformerInterface' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/admin-bundle/Form/DataTransformer/ModelsToArrayTransformer.php:26 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/admin-bundle/Form/DataTransformer/ModelsToArrayTransformer.php on line 26