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

I don't know what was wrong, but below steps solved my problem:

1. Clear caches folder from C:/Users//.grade/caches
2. Clear caches folder from C:/Users//.AndroidStuido3.x/system/caches
3. Restart Android Studio
4. Clean build project

After hours of experimenting and going through lots of solutions, this was the one that actually worked.

Hope anyone in the future faces this problem will find this helpful.