title: could not connect to MongoDB
body: <p>I have an issue using the mean.io tutorial to create the default mean app. i have mongodb install what could be ths issue this is the error.That is the error below. Thanks.</p>
  
  <pre><code>PS C:\Users\Truparse Creative\Documents\myMeanProject\lisavogue&gt; npm test
  
  &gt; mean@0.5.5 test C:\Users\Truparse Creative\Documents\myMeanProject\lisavogue
  &gt; gulp test
  
  Invoking gulp - development
  [08:40:17] Using gulpfile ~\Documents\myMeanProject\lisavogue\gulpfile.js
  [08:40:17] Starting 'startServer'...
  Error: connect ECONNREFUSED 127.0.0.1:27017
  **Could not connect to MongoDB. Please ensure mongod is running and restart MEAN app.**
  </code></pre>