title: Getting Error - Cannot find name 'angular'
body: <p>I'm starting writing AngularJS app using TypeScript. I have this simple module command:</p>
  
  <pre><code>(() =&gt; {
      angular
          .module('app', []);
  })();
  </code></pre>
  
  <p>When I run <code>tsc app.ts</code>, I got this: <code>app.ts(2,5): error TS2304: Cannot find name 'angular'.</code></p>
  
  <p>Do I need to include something to <code>app.ts</code> to make <code>tsc</code> understand the <code>angular</code>?</p>
  
  <p>Regards,</p>