SignalR overwriting OnConnected(), OnDisconnected()

You're probably using and old version of SignalR. Read this http://weblogs.asp.net/davidfowler/archive/2012/11/11/microsoft-asp-net-signalr.aspx.

This code worked for me until this morning when I upgraded SignalR from 2.1.0 to 2.1.1, and now I get "no suitable method found to override" for OnDisconnected(). I believe it needs to be written like this instead to account for a new parameter:

public override Task OnDisconnected(bool stopCalled = true) 
{
   UserHandler.ConnectedIds.Remove(Context.ConnectionId);
   return base.OnDisconnected(stopCalled); 
}