vs2010 wpf c#: how to get friends list from facebook? (Desktop application)
- by Ash
As per this link code from stack overflow i have try this code for getting 
friendslist but after login i got this error "requires valid signature"
string APIKey = ConfigurationManager.AppSettings["API_Key"];
string APISecret = ConfigurationManager.AppSettings["API_Secret"];
Facebook.Session.ConnectSession connectsession = new Facebook.Session.ConnectSession(APIKey, APISecret);
        Facebook.Rest.Api api = new Facebook.Rest.Api(connectsession);
        var friends = api.Friends.GetLists();
        foreach (var friend in friends)
        {
            System.Console.WriteLine(friend.name);
        }
guide me to find out the solution 
Thanks
ash