Invalid cast exception when getting nextpage of twitter friends

Question

Hi I'm using twitterizer to get a list of friends for an authenticated user. After some successful iterations of the while loop. I get an invalidcastexception when I call ResponseObject.NextPage. I am stumped as to why I am getting the error. Can anyone see why?

Code below.

    List<String> GetFriends(OAuthTokens tokens)
    {
        var result = new List<String>();
        TwitterResponse<TwitterUserCollection> friendsResponse = TwitterFriendship.Friends(tokens);
        if (friendsResponse.Result != RequestResult.Success)
        {
            return new List<string> {friendsResponse.ErrorMessage};

        }

        TwitterUserCollection friends = friendsResponse.ResponseObject;

        while (friends != null)
        {
            result.AddRange(friends.Select(x => x.Name));
            var y = friends.NextPage(); //ERROR HERE
            friendsResponse = y; 

            if (friendsResponse.Result != RequestResult.Success)
            {
                return new List<string> {friendsResponse.ErrorMessage};

            }
            friends = friendsResponse.ResponseObject;
        }
        return result;
    }

Answer 1

This looks like a bug... NextPage will be removed from the next version of Twitterizer http://forums.twitterizer.net/viewtopic.php?f=9&t=475