TypeError:类扩展未定义的值在运行next.js时不是构造函数或null

Question

跑步时

npm run dev

我突然开始收到错误，几乎没有对项目的代码进行任何更改：

TypeError: Class extends value undefined is not a constructor or null
    at Object.618 (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:100)
    at __nccwpck_require__ (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:11735)
    at Object.270 (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:413)
    at __nccwpck_require__ (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:11735)
    at Object.327 (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:260)
    at __nccwpck_require__ (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:11735)
    at Object.845 (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:3733)
    at __nccwpck_require__ (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:11735)
    at /Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:11863
    at Object.<anonymous> (/Users/EugeneBos/Websites/dotalaning/node_modules/next/dist/compiled/postcss-scss/scss-syntax.js:1:11889)
    at Module._compile (node:internal/modules/cjs/loader:1108:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1137:10)
    at Module.load (node:internal/modules/cjs/loader:973:32)
    at Function.Module._load (node:internal/modules/cjs/loader:813:14)
    at Module.require (node:internal/modules/cjs/loader:997:19)
    at require (node:internal/modules/cjs/helpers:92:18)

修改应用程序的代码，这样它就不会包含任何文件或加载任何仍然会产生相同错误的东西。

Answer 1

好的，删除node_modules和重新安装所有东西都有帮助。

rm -rf node_modules
npm install

Answer 2

我知道好的旧rm -rf没有什么问题，但是rm -rf是一个相当不错的工具：

1. npx npkill
2. Remove适当的node_modules folder
3. yarn或npm i

Answer 3

这可能会发生，如果你混合纱线与npm的依赖性以及。试一试

node_modules

• npm

1. rm-rf

安装

这个在我的案子里起作用了