Node.js – events js 72 throw er unhandled 'error' event -

i'm new node.js , wish run program using streams. other programs, had start server simultaneously (mongodb, redis, etc) have no idea if i'm supposed run 1 this. please let me know going wrong , how can rectify this. in advance.

this program:

var http = require('http'), feed = 'http://isaacs.iriscouch.com/registry/_changes?feed=continuous';   function decide(cb) { settimeout(function () { if (date.now()%2) { return console.log('rejected'); }         cb(); }, 2000); }  http.get(feed, function (res) {  decide(res.pipe.bind(res, process.stdout));   //using anonymous function instead of bind: // decide(function () { //   res.pipe(process.stdout) // });  }); 

this cmd output:

<b>c:\05-employing streams\05-employing streams\23-playing pipes>node npm_stre am_piper.js  events.js:72 throw er; // unhandled 'error' event           ^ error: parse error @ socket.socketondata (http.js:1583:20) @ tcp.onread (net.js:527:27) </b> 

close nodejs app running in shell. restart terminal , run program again.

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another server might using same port have used nodejs. kill process using nodejs port , run app.

to find pid of application using port:8000

$ fuser 8000/tcp 8000/tcp:            16708 

here pid 16708 kill process using kill [pid] command

$ kill 16708