Fatal error: Uncaught Error: Class 'Symfony\Component\Form\AbstractType' not found in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/sonata-project/form-extensions/src/Type/CollectionType.php:24 Stack trace: #0 {main} thrown in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/sonata-project/form-extensions/src/Type/CollectionType.php on line 24