"invalid parameter" when calling getUserObjects(long)?

Dec 3, 2008 at 4:41 PM
I'm trying to look up a specific friend in a friend list by calling fbService.friends.getUserObjects(long). However when I do I get the following exception:

Invalid parameter

I am able to successfully retrieve the entire list of friends by calling fbService.friends.getUserObjects(). I've also confirmed the Player Id I'm passing in is in my friend list (by looking through the user objects returned from the full list).

Has anyone else seen this before?