Channel Doesn't Exist or is not running

I am using CF 11, IIS 7.5 and windows 7 pro. when I create a sample application using websockets I get the following results:

{"msg":"ok","code":0,"clientid":40495741,"ns":"coldfusion.websocket.channels","reqType":"w elcome","type":"response"}

{"msg":"Channel 'stocks' doesn't exist or is not running.","code":-1,"clientid":40495741,"ns":"coldfusion.websocket.channels","reqType":"s ubscribe","type":"response"}

can someone help me understand why I am getting the second error message.

Thanks