解决 npm run build 出现的问题

[shenzekun]

在运行 npm run build 的时候出现

解决方法

You can fix this by using the most recent beta version of uglifyjs-webpack-plugin. Our team is working to remove completely the UglifyJsPlugin from within webpack, and instead have it as a standalone plugin.

If you do yarn add uglifyjs-webpack-plugin@beta --dev or npm install uglifyjs-webpack-plugin@beta --save-dev you should receive the latest beta which does successfully minify es6 syntax. We are hoping to have this released from beta extremely soon, however it should save you from errors for now!

也就是说升级你的uglifyjs-webpack-plugin版本：
yarn add uglifyjs-webpack-plugin@beta --dev