title: Module has no exported member NumpadTouchControl
body: <p>I'm developing a custom directive with Angular 1.4.9 &amp; TypeScript. The directive is done, but I'm trying to import it in my app.ts, so I can register it. This is where I'm stuck.</p>
  
  <p>My directive looks likes this</p>
  
  <pre><code>export module Helloworld{
      export class NumpadTouchControl implements ng.IDirective{
  
      }
  }
  </code></pre>
  
  <p>My app.ts like this</p>
  
  <pre><code>import { NumpadTouchControl } from './directives/numpadTouchControl';
  
  module Helloworld {
  
  }
  </code></pre>
  
  <p>On the first line of my app.ts it says: Module ... has no exported member 'NumpadTouchControl'. How can I make my import work?</p>
  
  <p>I am not using webpack or browserify.</p>