title: npm install is missing modules
body: <p>Before I can run <code>gulp</code> in my project I need to run <code>npm install</code>. This works except on my computer, because I get the following error:</p>
  
  <pre><code>Error: Cannot find module 'socket.io'
      at Function.Module._resolveFilename (module.js:338:15)
      at Function.Module._load (module.js:280:25)
      at Module.require (module.js:364:17)
      ...
  </code></pre>
  
  <p>I can fix this with</p>
  
  <pre><code>$&gt; npm install socket.io
  </code></pre>
  
  <p>Now when I do the install command again I get</p>
  
  <pre><code>Error: Cannot find module 'di'
      ...
  </code></pre>
  
  <p>When I install <code>di</code> and run the install command again I get:</p>
  
  <pre><code>Error: Cannot find module 'log4js'
  </code></pre>
  
  <p>I think that this might continue for a very long time. Any suggestions what is going on here and how to fix this ?</p>