When I import 'antd/es/locale/zh_CN' from 'antd', "Cannot use import statement outside a module" is displayed.

[xihayouyi]

Reproduction link

Steps to reproduce
1)npm install
2)npm run dev
3)open via browser http://localhost:3000/

Version Info:
antd | 5.15.2
React | 18.2.0
System | macOS Monterey12.5
Browser | Chrome108.0.5359.98

Can you help me analyze the reason, thank you。