Error: Cannot find module 'res' in server.js

Question

I'm trying to output a "hello world" text . I'm using expressjs and using view engine called "ejs" . i'm a beginner in nodeJS

var express = require("express");
var app = express();
var path = require('path');
var res = require("res");

var port = process.env.PORT;
app.set('view engine');
app.set('views',path.resolve(__dirname,'client','views'));

app.get('/',function() {
    res.render('index.ejs');
});

app.listen(port,function(){
    console.log('Server running in PORT '+port);
});

Here is the error:

module.js:338
    throw err;
    ^

Error: Cannot find module 'res'
    at Function.Module._resolveFilename (module.js:336:15)
    at Function.Module._load (module.js:286:25)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Object. (/home/ubuntu/workspace/server.js:4:11)
    at Module._compile (module.js:434:26)
    at Object.Module._extensions..js (module.js:452:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.runMain [as _onTimeout] (module.js:475:10)


Process exited with code: 1

what is the problem here?

mscdex mscdex · Accepted Answer · 2016-02-08T00:05:49

res is a function parameter for your route handler, it's not a module that you require().

Try this instead:

var express = require("express");
var app = express();
var path = require('path');

var port = process.env.PORT;
app.set('view engine');
app.set('views',path.resolve(__dirname,'client','views'));

app.get('/',function(req, res) {
    res.render('index.ejs');
});

app.listen(port,function(){
    console.log('Server running in PORT '+port);
});

Error: Cannot find module 'res' in server.js

1 Answers