Fatal error: Uncaught Error: Interface "Symfony\Component\Console\CommandLoader\CommandLoaderInterface" not found in /users/ms-it/www/oc/lib/composer/symfony/console/CommandLoader/FactoryCommandLoader.php:21 Stack trace: #0 {main} thrown in /users/ms-it/www/oc/lib/composer/symfony/console/CommandLoader/FactoryCommandLoader.php on line 21