Fatal error: Uncaught Error: Class 'Symfony\Component\Console\Output\ConsoleOutput' not found in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Testing/ParallelConsoleOutput.php:8 Stack trace: #0 {main} thrown in /var/www/html/test-project/my-app/vendor/laravel/framework/src/Illuminate/Testing/ParallelConsoleOutput.php on line 8