Fatal error: Uncaught Error: Class 'Symfony\Component\HttpKernel\DependencyInjection\Extension' not found in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/sonata-project/block-bundle/src/DependencyInjection/SonataBlockExtension.php:29 Stack trace: #0 {main} thrown in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/sonata-project/block-bundle/src/DependencyInjection/SonataBlockExtension.php on line 29