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/oneup/uploader-bundle/src/DependencyInjection/OneupUploaderExtension.php:18 Stack trace: #0 {main} thrown in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/oneup/uploader-bundle/src/DependencyInjection/OneupUploaderExtension.php on line 18