webpack can't pack G6 with UglifyJs #3338

<img width="834" alt="1638350664(1)" src="https://user-images.githubusercontent.com/5117803/144207509-b3618a8c-0571-40dc-bd5a-0806417a011e.png"> An exception was thrown as the screen dump above when npm build with webpack, which pointed out the UglifyJs has some conflict with G6, am I right? how can I fix it? thx