执行 npm run build:prod
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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\司超龙\IdeaProjects\vue\base_education_vue\base_education_third_3.0+\grass-roots teaching system\node_modules\mini-css-extract-plugin\dist\CssDependency.js:12:46) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) at Module.load (internal/modules/cjs/loader.js:928:32) at Function.Module._load (internal/modules/cjs/loader.js:769:14) at Module.require (internal/modules/cjs/loader.js:952:19) at require (internal/modules/cjs/helpers.js:88:18) at Object.<anonymous> (C:\Users\司超龙\IdeaProjects\vue\base_education_vue\base_education_third_3.0+\grass-roots teaching system\node_modules\mini-css-extract-plugin\dist\index.js:12:45) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) npm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! vue-admin-template@4.4.0 build:prod: `vue-cli-service build` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the vue-admin-template@4.4.0 build:prod 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\司超龙\AppData\Roaming\npm-cache\_logs\2021-03-26T13_04_34_482Z-debug.log |
执行num run build:prod 报错，但是npm run dev没问题
TypeError: Class extends value undefined is not a constructor or null at Object.<anonymous> (C:\Users\司超龙\IdeaProjects\vue\base_education_vue\base_education_third_3.0+\grass-roots teaching system\node_modules\mini-css-extract-plugin\dist\CssDependency.js:12:46)
CssDependency的问题，依赖包不兼容
执行npm add webpack@4.5.0，解决
from:https://blog.csdn.net/qq_24654501/article/details/115254960