Installing "ORCHID" in a Ravel 5.5 Development Environment

https://orchid.software/en/docs/requirements/
I have installed it with reference to , but it doesn't work.

Inherit your model App\User

namespace App;

use Orchid\Platform\Core\Models\User as BaseUser;

class User extensions BaseUser
{

}

I'm at a loss because I don't understand that.

The development environment is
Build with Windows 10 Vagrant HomeStead VirtualBox.

The result is
Sorry, the page you are looking for could not be found.
will be

I'm having a hard time moving forward

Thank you in advance.