title: nodejs - can't find module Backbone
body: <pre><code>var Backbone = require('backbone');
  </code></pre>
  
  <p>causes this error:</p>
  
  <pre><code>module.js:340
      throw err;
            ^
  Error: Cannot find module 'backbone'
      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.&lt;anonymous&gt; (C:\Users\denman\workspace-nodejs\AFirstServer_NodeUpAndRunning\hello-world-server.js:6:16)
      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)
  </code></pre>
  
  <p>how can this be?</p>
  
  <p>I installed Backbone via <code>npm install -g backbone</code></p>
  
  <p>I even restarted Eclipse and my machine.</p>