Fatal error: Uncaught Error: Class "Illuminate\Tests\Integration\Http\Fixtures\PostResource" not found in C:\xampp\htdocs\astra-backoffice\vendor\laravel\framework\tests\Integration\Http\Fixtures\PostResourceWithExtraData.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\astra-backoffice\vendor\laravel\framework\tests\Integration\Http\Fixtures\PostResourceWithExtraData.php on line 5