Fatal error: Uncaught Error: Class "Illuminate\Foundation\Testing\TestCase" not found in /home/naisenterprises/erp.naisenterprises.com/laravel-realworld-example-app/tests/TestCase.php:7 Stack trace: #0 {main} thrown in /home/naisenterprises/erp.naisenterprises.com/laravel-realworld-example-app/tests/TestCase.php on line 7