I am unaware what is causing this problem, because I thought it should be working. I do have expressed installed, at least according to npm:
C:\Users\phucker\Desktop>node init.js
module.js:340
throw err;
^
Error: Cannot find module 'express'
at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (C:\Users\phucker\Desktop\init.js:1:77)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
C:\Users\phucker\Desktop>npm express -v
1.3.2
C:\Users\phucker\Desktop>
the code contained in init.js is
var express = require('express');
var app = express();
app.get('/', function(req, res){
res.send('hello world');
});
app.listen(3000);
npm express -v
doesn't show the version of Express that you have installed, it shows the version of npm
.
To show which version of Express you have installed, try this:
npm ls express
You need to have express
installed locally in your node_modules
folder. Check your node_modules
and install it again if it is not there
Maybe it is not your problem, but it is often confusing distinction between global and local installations for beginners. If you use require('module_name')
in your code, each module must be installed locally using npm install module_name
or using dependencies in package.json
.
Global installation is only for running commands like express my_new_project
.
You can list all installed local modules for actual directory using npm list
and all global ones running npm list -g
.
Please check the following if you have installed express globally
ie using the command npm install -g express
Check if express module is imported in your code using
var express = require('express')
On windows check if the path C:\\Users\\<user_name>\\AppData\\Roaming\\npm
is on the PATH environment variable
For installations that do not have express installed globally
npm install express
var express = require('express')
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