Fatal error: Uncaught Error: Class 'Symfony\Component\DependencyInjection\Dumper\Dumper' not found in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/symfony/dependency-injection/Dumper/XmlDumper.php:33 Stack trace: #0 {main} thrown in /home/devilinf/maitres-couvreurs.fr/web_pool/marne-vitry-le-francois/vendor/symfony/dependency-injection/Dumper/XmlDumper.php on line 33