Can't send FB Notifications with new API

Question

Really need some help with this one!

I\'m trying to send notifications from a canvas app using the new notifications API but I keep getting the following exception:

Answer 1

1:\ Go to developer.facebook.com

2:\ Go to your app Settings \ Basic

3:\ Add new platform from plus at button bottom of the page

4:\ Choose Facebook Canvas

now you may need to fill form with your url

That's it