TypeScript A computed property name in a type literal must directly refer to a built-in symbol : <blockquote>
  <p>ERROR in ...component.ts (..,..): A computed property name in a type
  literal must directly refer to a built- in symbol. ...: Cannot find
  name 'any'.</p>
</blockquote>

<p>I'm looking forward an object which contains strings which have other string, i.e:</p>

<pre><code>{ abc: 'xyz' }
</code></pre>

<p>What I did:</p>

<pre><code>foo: { [string]: string };
</code></pre>
