Fatal error: Uncaught Error: Interface "Symfony\Component\Console\Descriptor\DescriptorInterface" not found in /users/ms-it/www/oc/lib/composer/symfony/console/Descriptor/Descriptor.php:27 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/lib/composer/symfony/console/Descriptor/Descriptor.php on line 27