Fatal error: Uncaught Error: Interface "Symfony\Component\Routing\Generator\Dumper\GeneratorDumperInterface" not found in /users/ms-it/www/oc/lib/composer/symfony/routing/Generator/Dumper/GeneratorDumper.php:21 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/lib/composer/symfony/routing/Generator/Dumper/GeneratorDumper.php on line 21