node.js - NPM: Can't require globally installed module -

i trying require npm package browserify, have installed globally through command:

npm install -g browserify 

this file bundle.js in try require browserify:

var browserify = require('browserify'); var fs = require('fs'); var b = browserify();  var outputfilestream = fs.createwritestream('./test_bundle.js');  b.add('index.js'); b.bundle().pipe(outputfilestream);  // process.stdout 

when node build.js error:

error: cannot find module 'browserify' ( etcetera...) 

if instead install browserify locally:

npm install -g browserify 

i no error , build goes fine.

i have uploaded small demo program github repository:

https://github.com/loldrup/test_require

so if you're on windows 7 machine, should able reproduce error cloning:

git clone https://github.com/loldrup/test_require 

and running:

node build 

edit:

even after adding relevant node paths system variable 'path', , restarted command promt, still can't require globally installed node modules:

node.js doesn't in folder global modules installed default.

add module.paths.push('path global node_modules') @ beginning of script or set enviroment variables.