Created Unassigned: Intellisense doesn't work [1039]

Create new Node.js project and we gets simple code:

``` JavaScript
var http = require('http');
var port = process.env.port || 1337;
http.createServer(function (req, res) {
res.writeHead(200, { 'Content-Type': 'text/plain' });
res.end('Hello World\n');
}).listen(port);
```

When I type
``` JavaScript
req.
```

Intellisense show me nothing.

P.S. Microsoft Visual Studio 2013 Update 2 + Node.js Tools for Visual Studio + Windows 8.1 Update 1

Sorry for my English.