title: Android Studio Layout preview not showing design
body: <p>I am currently working on a project and everything was fine. Today, while I opened android studio, the design/layout preview showing white screen only. (Like the picture)</p>
  
  <p>I did try:</p>
  
  <ol>
  <li>Invalidate Cache and Restart</li>
  <li>Force Layout Refresh</li>
  <li>Downgrading appcombat to 27.1.1</li>
  <li>Adding Base.Theme in style.xml</li>
  </ol>
  
  <p>But, nothing worked. <strong>No Build errors, runs fine in emulator and design shows in emulator, but not in android studio.</strong></p>
  
  <p>Any solution would be a great help, also let me know if you need more details.</p>
  
  <p><a href="https://i.stack.imgur.com/Dz2Hp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Dz2Hp.png" alt="enter image description here"></a></p>
  
  <p>Even a new project with Hello World layout appears same. Tried, uninstalling and installing Android Studio.
  <a href="https://i.stack.imgur.com/JZ0fv.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JZ0fv.png" alt="enter image description here"></a></p>