Solved::MessageQueue.BeginReceive() null ref error - c#
- by ltech
Have a windows service that listens to a msmq. In the OnStart method is have this
protected override void OnStart(string[] args)
{
try
{
_queue = new MessageQueue(_qPath);//this part works as i had logging before and afer this call
//Add MSMQ Event
_queue.ReceiveCompleted += new ReceiveCompletedEventHandler(queue_ReceiveCompleted);//this part works as i had logging before and afer this call
_queue.BeginReceive();//This is where it is failing - get a null reference exception
}
catch(Exception ex)
{
EventLogger.LogEvent(EventSource, EventLogType, "OnStart" + _lineFeed +
ex.InnerException.ToString() + _lineFeed + ex.Message.ToString());
}
}
where
private MessageQueue _queue = null;
This works on my machine but when deployed to a windows 2003 server and running as Network service account, it fails
Exception recvd:
Service cannot be started. System.NullReferenceException: Object reference not set to an instance of an object.
at MYService.Service.OnStart(String[] args)
at System.ServiceProcess.ServiceBase.ServiceQueuedMainCallback(Object state)
Solved:
Turned out that the Q that i set up, I had to explicitly add Network Service account to it under security tab
