so .. i don't know if this right.. but...
when i configured my .INI file , i put in port, the number 8000
and when the server show me GAVE ERROR , i kill and open it again
and you must expecify the port on your IP ADDRESS to your listeners .... e.g.: http://0.0.0.0:8000
sorry my enlgish , because i'm brazilian , and i hope what this help