Fatal error: Uncaught Error: Interface 'Symfony\Component\Form\DataTransformerInterface' not found in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/symfony/form/Extension/Core/DataTransformer/ValueToDuplicatesTransformer.php:20 Stack trace: #0 {main} thrown in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/symfony/form/Extension/Core/DataTransformer/ValueToDuplicatesTransformer.php on line 20