使用工匠创建控制器时出错 - laravel 4

Im trying to create a controller using this command: php artisan controller:make CupcakesController but i am receiving this error:

{
    "error": {
        "type": "ErrorException",
        "message": "include(\/opt\/lampp\/htdocs\/cupcakes-lara\/app\/controllers\/CupcakesController.php): failed to open stream: No such file or directory",
        "file": "\/opt\/lampp\/htdocs\/cupcakes-lara\/vendor\/composer\/ClassLoader.php",
        "line": 185
    }
}

whats wrong with this?

That's generator, not artisan?

php artisan generate:controller CupcakesController

This error is generated if you create a route that points to a non-existent controller in routes.php and then try to make the controller using Artisan. Comment out the route and try again :)