title: Can't use fonts in my project: - "Error:Error: The file name must end with .xml"
body: <p>I'm trying to add a font to my Android project, so I can use it via XML. 
  Unfortunately, I'm getting this error message:</p>
  
  <blockquote>
    <p>Error:Error: The file name must end with .xml</p>
  </blockquote>
  
  <p>I followed every step of the official Android tutorial and somehow this error occurs and I can't fix it.</p>
  
  <p><a href="https://i.stack.imgur.com/1Bpwt.png" rel="noreferrer"><img src="https://i.stack.imgur.com/1Bpwt.png" alt="Here is this my error"></a></p>