title: Android Studio Vector asset always could not generate a preview
body: <p>I want to use vector asset in android studio to generate svg xml file, 
  I convert my png to svg in this <a href="https://www.aconvert.com/image/png-to-svg/" rel="nofollow noreferrer">web site</a><br>
  but when I use this svg file in vector asset to generate xml file, I get following error message<br></p>
  
  <p><img src="https://i.stack.imgur.com/65tug.png" alt="Picture"></p>
  
  <p><br>It display "could not generate a preview"<br>
  How can I fix it?</p>