title: Node.JS can't find node-schedule module
body: <p>Ok I've read tens of similar questions but none have been able to fix my problem - mainly because I think my problem is a bit deeper.</p>
  
  <p>I have several modules working fine on my server (Nodejitsu) which I <em>think</em> I installed the same way which was: npm install express/connect/mongojs etc...</p>
  
  <p>In my server.js :</p>
  
  <pre><code>var express = require('express');
  var team = require('./team');
  var users = require('./users');
  var scheduler = require('node-schedule');
  </code></pre>
  
  <p>Now I'm trying to get node-schedule module to work so I installed via npm <em>while in the directory of my server.js file</em> the module indeed enters node_modules folder but when I deploy my app I get this:</p>
  
  <pre><code>error:   module.js:340
  error:       throw err;
  error:             ^
  error:   Error: Cannot find module 'node-schedule'
  error:       at Function.Module._resolveFilename (module.js:338:15)
  error:       at Function.Module._load (module.js:280:25)
  error:       at Module.require (module.js:364:17)
  error:       at require (module.js:380:17)
  error:       at Object.&lt;anonymous&gt; (/opt/run/snapshot/package/server.js:5:1)
  error:       at Module._compile (module.js:456:26)
  error:       at Object.Module._extensions..js (module.js:474:10)
  error:       at Module.load (module.js:356:32)
  error:       at Function.Module._load (module.js:312:12)
  error:       at Function.Module.runMain (module.js:497:10)
  </code></pre>
  
  <p>I think my problem could have something to do with my package.json file which is pretty much empty:</p>
  
  <pre><code> {
        "name": "wePlay",
        "subdomain": "wePlay",
        "scripts": {
          "start": "node server.js"
        },
        "version": "0.0.0-203",
        "engines": {
          "node": "0.10.x"
        }
  }
  </code></pre>
  
  <p>Now I have in my node_modules folder several modules as I mentioned (express,mongojs..) and they all work fine when I deploy, even though they are not mentioned in my package.json file - but now this new module, nothing...
  I've tried  (based on past threads) to install it with -g and still nothing, I've also tried linking it, nothing...</p>
  
  <p>I see there is a problem because when I try to deploy my app I see this as the app is deploying:</p>
  
  <pre><code>connect@2.7.3 node_modules/connect
  ├── fresh@0.1.0
  ├── pause@0.0.1
  ├── cookie-signature@0.0.1
  ├── bytes@0.2.0
  ├── buffer-crc32@0.1.1
  ├── cookie@0.0.5
  ├── debug@0.7.2
  ├── send@0.1.0 (range-parser@0.0.4, mime@1.2.6)
  ├── formidable@1.0.11
  └── qs@0.5.1
  
  express@3.2.2 node_modules/express
  ├── methods@0.0.1
  ├── fresh@0.1.0
  ├── range-parser@0.0.4
  ├── cookie-signature@1.0.1
  ├── qs@0.6.3
  ├── buffer-crc32@0.2.1
  ├── cookie@0.0.5
  ├── debug@0.7.2
  ├── commander@0.6.1
  ├── mkdirp@0.3.4
  ├── send@0.1.0 (mime@1.2.6)
  └── connect@2.7.8 (pause@0.0.1, bytes@0.2.0, formidable@1.0.13)
  
  nodemailer@0.4.4 node_modules/nodemailer
  ├── simplesmtp@0.3.1 (xoauth2@0.1.8, rai@0.1.7)
  └── mailcomposer@0.1.33 (mime@1.2.9, mimelib@0.2.12)
  
  mongojs@0.7.5 node_modules/mongojs
  ├── thunky@0.1.0
  ├── readable-stream@1.0.2
  └── mongodb@1.3.6 (kerberos@0.0.2, bson@0.1.8)
  </code></pre>
  
  <p>so obviously node-schedule is not there.
  I just can't seem to understand
  a) How I got the original modules to work, when my server.js package.json is empty...
  b) how can require not find it when its sitting right there, next to express connect and mongojs...</p>