Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in D:\Project\laravel-12x-tutorial\vendor\laravel\framework\src\Illuminate\Foundation\Testing\TestCase.php:9 Stack trace: #0 {main} thrown in D:\Project\laravel-12x-tutorial\vendor\laravel\framework\src\Illuminate\Foundation\Testing\TestCase.php on line 9