Cannot GET with Connect on Node js

Question

I am using connect to serve some static webpages like this:

var connect = require("connect");
var nowjs = require("now");
var io = require("socket.io");


var app = connect.createServer(
  connect.static(__dirname + '/public')
);

app.listen(8180);

I am getting this response: " Cannot GET / " after I added a simple index.html at the /public directory on the same directory as the app.js file. I got the response when I tried to view the page on my browser.

Can someone explain to me why this response is coming? And how can I solve this?