title: Cannot find module 'ts-node/register'
body: <p>I want to use mocha to test my TypeScript/Angular2 project.  I tried to use <strong>ts-node</strong> as described <a href="https://stackoverflow.com/a/35661569/5115768">here</a>:  </p>
  
  <pre><code>npm install -g ts-node
  </code></pre>
  
  <p>but when running  </p>
  
  <pre><code>mocha --require ts-node/register -t 10000 ./**/*.unit.ts
  </code></pre>
  
  <p>I get an error  </p>
  
  <blockquote>
    <p>Cannot find module 'ts-node/register'</p>
  </blockquote>
  
  <p>What am I missing here?</p>