webpack compile error

[gmailzj]

npx webpack
It seems to not support the syntax!

ERROR in ./node_modules/react-desktop/src/Button/macOs/index.js
Module parse failed: Unexpected character '@' (11:0)
You may need an appropriate loader to handle this file type.
| import Radium from 'radium';
|
| @WindowFocus()
| @padding()
| @Margin()