我是laravel的新手。在我新装的laravel 5上，我得到了这个......任何帮助??
Catchable fatal error: Argument 1 passed to Illuminate\Foundation\Application::__construct() must be an instance of Illuminate\Http\Request, string given, called in D:\xampp\htdocs\laravel\bootstrap\app.php on line 16 and defined in D:\xampp\htdocs\laravel\vendor\laravel\framework\src\Illuminate\Foundation\Application.php on line 108