about notification exception....

FROM : Jay
DATE : Sat Apr 07 14:11:26 2007

Hello,
I have a custom View class in the main WIndow, and for the need of communication with the AppController class in runtime. I use NSNotification to post some notifications when the customerView class has something happens in the view, and the AppController did receive the notification,

however, I'm using a user-defined class to finishe some task when the notification is received, regardless when I use it (either in the notification handler selector or other selector called from this one) I always get the following exception.

Exception raised during posting of notification.  Ignored.  exception: *** +[PNFnode setScreenPoint:]: selector not recognized

All I want is just to send some information(data) from the View to Controller Layer.
Many thanks in advance.

Jay