npm安装依赖报错npm ERR! code ENOTFOUND npm ERR! errno ENOTFOUND、npm run dev报错记录

npm安装依赖报错npm ERR! code ENOTFOUND npm ERR! errno ENOTFOUND_得我所得，爱我所爱的博客-CSDN博客npm安装依赖报错今天在学习webpack的时候，在使用npm install来安装一个局部的webpack时候，报出一下错误:npm ERR! code ENOTFOUNDnpm ERR! errno ENOTFOUNDnpm ERR! network request to http://registry.cnpmjs.org/webpack failed, reason: getaddrinfo ENOTFOUND proxy-sznnpm ERR! network This is a pro_npm err! code enotfoundhttps://blog.csdn.net/qq_45914170/article/details/112298654

C:\Users\8\Desktop\CS5\client_admin>npm run dev

报错：
> changsheng_project_admin@0.1.0 dev C:\Users\8\Desktop\CS5\client_admin
> vue-cli-service serve

 INFO  Starting development server...
98% after emitting CopyPlugin

 ERROR  Failed to compile with 1 error                                                                       12:43:36 AM

 error  in ./src/main.js

Syntax Error: BrowserslistError: [BABEL] C:\Users\8\Desktop\CS5\client_admin\src\main.js: C:\Users\8\Desktop\CS5\client_admin contains both .browserslistrc and browserslist (While processing: "C:\\Users\\8\\Desktop\\CS5\\client_admin\\node_modules\\@vue\\cli-plugin-babel\\preset.js")
    at Generator.next (<anonymous>)
    at Generator.next (<anonymous>)


 @ multi (webpack)-dev-server/client?http://10.34.187.254:8081&sockPath=/sockjs-node (webpack)/hot/dev-server.js ./src/main.js

 我就是删除了browserslist文件，运行结果如下：

C:\Users\8\Desktop\CS5\client_admin>npm run dev

> changsheng_project_admin@0.1.0 dev C:\Users\8\Desktop\CS5\client_admin
> vue-cli-service serve

 INFO  Starting development server...
10% building 4/5 modules 1 active ...r\lib\index.js!C:\Users\8\Desktop\CS5\client_admin\src\main.jsBrowserslist: caniuse-lite is outdated. Please run:
npx browserslist@latest --update-db

Why you should do it regularly:
https://github.com/browserslist/browserslist#browsers-data-updating
68% building 604/619 modules 15 active ...0220331154246\client_admin\node_modules\core-js\modules\es.string.iterator.js[BABEL] Note: The code generator has deoptimised the styling of C:\Users\8\Desktop\CS5\client_admin\src\assets\js\echarts.min.js as it exceeds the max of 500KB.
98% after emitting CopyPlugin

 WARNING  Compiled with 1 warning                                                                            12:49:49 AM

 warning  in ./src/components/common/page_side.vue?vue&type=template&id=230c6473&scoped=true&

Module Warning (from ./node_modules/vue-loader/lib/loaders/templateLoader.js):
(Emitted value instead of an instance of Error) <el-menu-item v-for="o in auth">: component lists rendered with v-for should have explicit keys. See https://vuejs.org/guide/list.html#key for more info.

 @ ./src/components/common/page_side.vue?vue&type=template&id=230c6473&scoped=true& 1:0-438 1:0-438
 @ ./src/components/common/page_side.vue
 @ ./src/plugins/component.js
 @ ./src/plugins/index.js
 @ ./src/main.js
 @ multi (webpack)-dev-server/client?http://10.34.187.254:8082&sockPath=/sockjs-node (webpack)/hot/dev-server.js ./src/main.js


  App running at:
  - Local:   http://localhost:8082/
  - Network: http://10.34.187.254:8082/

  Note that the development build is not optimized.
  To create a production build, run npm run build.