C# error System.NullReferenceException

Question

I have some problems with System.NullReferenceException. When server do things and we first check user is not null and then he disconnect and server progress something and it tr

Answer 1

SendMessage is throwing null exception, check code in your SendMessage Method

if User goes null before call dont call SendMessage:-

 if (User != null)
 {
       User.SendMessage("crash"); //<-- No More System.NullReferenceException... -.-
 }