Node.js http parse error

events.js:72
        throw er; // Unhandled ‘error‘ event
              ^
Error: Parse Error
    at Socket.socketOnData (http.js:1583:20)
    at TCP.onread (net.js:527:27)

var http = require(‘http‘);

var server = http.createServer();

server.listen(3000);

server.on(‘request‘, function(req, res){
    res.writeHead(‘Content-Type‘, ‘text/html‘);
    res.end(‘hello world‘);
});

var http = require(‘http‘);

var req = http.request(‘http://localhost:3000‘);

req.on(‘response‘, function(res){
    res.setEncoding(‘utf8‘)
    res.on(‘data‘, function(data){
        console.log(data);
    })
})

req.end();

res.writeHead(‘Content-Type‘, ‘text/html‘);

res.writeHead(200, {‘Content-Type‘: ‘text/html‘});

If any error is encountered during the request (be that with DNS resolution, TCP level errors, or actual HTTP parse errors) an ‘error‘ event is emitted on the returned request object.