Android Studio Layout preview not showing design

Question

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)

Answer 1

Based on the screen shot it looks like the RelativeLayout you are using can't find the resource images like 'adminIcon'. If you click on that red badge of the icon it should have a text message behind it.

Did the artwork name of the images change? Do you see them in your res/drawable folder?