vue打包问题 求助求助 大佬们

[萌萌的铁头怪]

ERROR TypeError: Class extends value undefined is not a constructor or null
TypeError: Class extends value undefined is not a constructor or null
at Object.<anonymous> (C:\Users\易有志\Desktop\demo5\node_modules\mini-css-extract-plugin\dist\CssDependency.js:12:46)
at Module._compile (internal/modules/cjs/loader.js:1137:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
at Module.load (internal/modules/cjs/loader.js:985:32)
at Function.Module._load (internal/modules/cjs/loader.js:878:14)
at Module.require (internal/modules/cjs/loader.js:1025:19)
at require (internal/modules/cjs/helpers.js:72:18)
at Object.<anonymous> (C:\Users\易有志\Desktop\demo5\node_modules\mini-css-extract-plugin\dist\index.js:12:45)
at Module._compile (internal/modules/cjs/loader.js:1137:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
at Module.load (internal/modules/cjs/loader.js:985:32)
at Function.Module._load (internal/modules/cjs/loader.js:878:14)
at Module.require (internal/modules/cjs/loader.js:1025:19)
at Object.<anonymous> (C:\Users\易有志\Desktop\demo5\node_modules\mini-css-extract-plugin\dist\cjs.js:3:18)
at Module._compile (internal/modules/cjs/loader.js:1137:30)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! decoration_fe@0.1.0 build:test: `vue-cli-service build --mode test`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the decoration_fe@0.1.0 build:test script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\易有志\AppData\Roaming\npm-cache\_logs\2020-12-09T12_39_38_190Z-debug.log


求助 帮帮孩子

[weixin_50944805]

运行正常吗？ 试一下删除 node_modules 文件 然后再 $ npm i

[start_anew]

看不懂，。。。。

[此刻、尽丝滑]

下载cjs模块