Fatal error: Uncaught Error: Class "Symfony\Component\Console\Output\ConsoleOutput" not found in /opt/lampp/htdocs/forum/flarum/vendor/illuminate/console/BufferedConsoleOutput.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/forum/flarum/vendor/illuminate/console/BufferedConsoleOutput.php on line 7