Android Studio中的布局设计为空

Question

enter image description here

It showed:

Rendering problems: The graphics preview in the layout editor may not be accurate: - PorterDuff Color Filters are not supported. (Ignore for this session) Ignore all fidelity warnings for this session

The component tree and properties also empty.

Does anybody know what's the problem here? Thanks a lot, in advance.

Answer 1

我将Android版本更改为更高级别，问题已解决。