title: Font family Roboto light and bold in react native
body: <p>I',m making some changes to the text in my react native application: I need to specify Roboto light for paragraphs and Roboto Bold for titles.
  I need to have the same look of the text in both iOS and Android apps: so I need to make it work for both
  I tried this code line of code</p>
  <pre><code>text    : {
         fontFamily: 'sans-serif-light'
     }, 
  </code></pre>
  <p>but I get this error: <a href="https://i.stack.imgur.com/9l8BY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9l8BY.png" alt="enter image description here" /></a></p>
  <p>I tried this type from the official documentation and it's working fine</p>
  <pre><code>title   : {
         fontFamily: 'Cochin'
     },
  </code></pre>
  <p>--&gt; So I think the problem is in the Roboto font family itself. Any help?</p>