Module not found when requiring express

Question

Server is Ubuntu 12.0.4 x64, Node.js version is v0.8.9 (built from source code). I have succesfully installed express by sudo npm install -g express then tried below sample code to verify express but get error saying "Can not find module 'express'"

var express = require('express');

possible duplicate of Accessing a node.js global module

Pickels
– Pickels

2013-03-31 16:29:03 +00:00
Commented Mar 31, 2013 at 16:29 — Pickels
– Pickels, Commented Mar 31, 2013 at 16:29

James Allardice · Accepted Answer · 2013-03-31 15:41:07Z

2

You've installed the module globally. To use it in your project you need to install it locally. From your project directory:

npm install express

Or, add it to the dependencies in your package.json file and just run npm install. This will create a node_modules directory in your project, into which all local modules will be installed.

answered Mar 31, 2013 at 15:41

James Allardice

166k22 gold badges335 silver badges315 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Shuping Over a year ago

Could I know why this module should be installed locally rahter than globally as others?

James Allardice Over a year ago

Some modules can be installed both globally and locally. With Express installed globally you can run express in your terminal and it will initialize an Express project. When it's installed locally, you can use Express in that project.

robertklep Over a year ago

It just depends on how you set $NODE_PATH, I can require globally installed modules just fine because the global node_modules (which, in my case, is located in /usr/local/lib) is in $NODE_PATH.

Collectives™ on Stack Overflow

Module not found when requiring express

1 Answer 1

3 Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

3 Comments

Related