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I just installed node-postgres by running npm install pg .

In my source code, I added var pg = require('pg"); and when I run I now get

module.js:340
    throw err;
          ^
Error: Cannot find module 'pg'
    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> (/Users/rrazavipour-lp/Documents/workspace/Astute/app.js:9:10)
    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 Module.runMain [as _onTimeout] (module.js:497:10)

What step am I missing?

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This might help... ls /usr/local/lib/node_modules/ express npm pg prettyjson soap –  reza Sep 23 at 23:46

1 Answer

up vote 1 down vote accepted

Where is the node_modules folder in relation to your application?

from http://nodejs.org/api/modules.html:

If the module identifier passed to require() is not a native module, and does not begin with '/', '../', or './', then node starts at the parent directory of the current module, and adds /node_modules, and attempts to load the module from that location.

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it is only showing up in /usr/local/lib/node_modules –  reza Sep 24 at 4:11
 
then either copy it to the same directory your code is running from or run npm install from the directory your code is running from. –  djbrick Sep 24 at 4:17
 
should I not be doing : npm install pg -g for global? Or when do you use -g? –  reza Sep 24 at 4:18
 
it is recommended to install locally unless you need a binary to your $path variable see blog.nodejs.org/2011/03/23/npm-1-0-global-vs-local-installation if you want to install it globally see stackoverflow.com/questions/15636367/… –  djbrick Sep 24 at 19:58

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