Fatal error: Uncaught Error: Class "Illuminate\Foundation\Testing\TestCase" not found in /home/trairtil/public_html/vendor/laravel/framework/tests/Integration/Queue/CustomPayloadTest.php:13 Stack trace: #0 {main} thrown in /home/trairtil/public_html/vendor/laravel/framework/tests/Integration/Queue/CustomPayloadTest.php on line 13