How to Integrate paypal gateway in laravel?

Am following this site http://ift.tt/1LSrmRI If I run the project I have error like this,Pls anybody say solution

localhost/pay_pal/public/payment
MethodNotAllowedHttpException in RouteCollection.php line 219:

localhost/pay_pal/public/payment/status
FatalErrorException in PaypalController.php line 18: Class 'App\Http\Controllers\BaseController' not found

via Chebli Mohamed