title: Duplicate identifier 'export=', Duplicate string index signature, Duplicate number index signature
body: <p>After installing the </p>
  
  <blockquote>
    <p>jquery.TypeScript.DefinitelyTyped</p>
  </blockquote>
  
  <p>I get the following errors when doing a <code>tsc</code>:</p>
  
  <ul>
  <li>TS2300: Duplicate identifier 'export=',  </li>
  <li>TS2374: Duplicate string index signature,  </li>
  <li>TS2375: Duplicate number index signature</li>
  </ul>
  
  <p><strong>What do they mean and how to solve them?</strong></p>
  
  <p>I have read a dozens of threads here, but none helped.
  <a href="https://i.stack.imgur.com/tRZi3.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tRZi3.png" alt="enter image description here"></a></p>
  
  <p><strong>Virtual folder in VS2015</strong>:<br><br>
  <a href="https://i.stack.imgur.com/jjhCT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jjhCT.png" alt="enter image description here"></a></p>