API 1.1

Sep 7, 2013 at 1:28 PM
This does not work, i get an error
The best overloaded method match for 'System.Collections.Generic.List<object>.List(int)' has some invalid arguments
return Proxy.GetUserTimeline(userId, screenName, sinceId, maxId, count, page, trimUser, includeRetweets, includeEntities);
Is this due to API v1.1?