Fatal error: Uncaught Error: Class "Symfony\Component\Console\Command\Command" not found in /home/vincent/http/concrete5/concrete/vendor/symfony/translation/Command/XliffLintCommand.php:29 Stack trace: #0 {main} thrown in /home/vincent/http/concrete5/concrete/vendor/symfony/translation/Command/XliffLintCommand.php on line 29