Fatal error: Uncaught Error: Trait "Symfony\Component\Console\Tester\TesterTrait" not found in /home/prooyavi/laravel/laravel/vendor/symfony/console/Tester/ApplicationTester.php:27 Stack trace: #0 {main} thrown in /home/prooyavi/laravel/laravel/vendor/symfony/console/Tester/ApplicationTester.php on line 27