Fatal error: Uncaught Error: Class 'Symfony\Component\Routing\Generator\Dumper\GeneratorDumper' not found in /home/app/htdocs/message_gateway/vendor/symfony/routing/Generator/Dumper/PhpGeneratorDumper.php:20 Stack trace: #0 {main} thrown in /home/app/htdocs/message_gateway/vendor/symfony/routing/Generator/Dumper/PhpGeneratorDumper.php on line 20