Fatal error: Uncaught Error: Class "Illuminate\Support\ServiceProvider" not found in C:\xampp\htdocs\r10csm\vendor\laravel\framework\tests\Integration\Foundation\Fixtures\Providers\ThrowExceptionServiceProvider.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\r10csm\vendor\laravel\framework\tests\Integration\Foundation\Fixtures\Providers\ThrowExceptionServiceProvider.php on line 9