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报错：npm ERR code EPERM

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1 完整错误

npm ERR! code EPERM
npm ERR! syscall open
npm ERR! path D:NodeJS
ode_cache_cacache	mpbbab18e
npm ERR! errno EPERM
npm ERR! FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/webpack: EPERM: operation not permitted, open 'D:NodeJS
ode_cache_cacache	mpbbab18e'
npm ERR!     at D:NodeJS
ode_modules
pm
ode_modulesminipass-fetchlibody.js:162:15
npm ERR!     at async Arborist.[nodeFromEdge] (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:1061:19)
npm ERR!     at async Arborist.[buildDepStep] (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:930:11)
npm ERR!     at async Arborist.buildIdealTree (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:216:7)
npm ERR!     at async Promise.all (index 1)
npm ERR!     at async Arborist.reify (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarborist
eify.js:149:5)
npm ERR!     at async Install.install (D:NodeJS
ode_modules
pmlibinstall.js:170:5)
npm ERR!  FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/webpack: EPERM: operation not permitted, open 'D:NodeJS
ode_cache_cacache	mpbbab18e'
npm ERR!     at D:NodeJS
ode_modules
pm
ode_modulesminipass-fetchlibody.js:162:15
npm ERR!     at async Arborist.[nodeFromEdge] (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:1061:19)
npm ERR!     at async Arborist.[buildDepStep] (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:930:11)
npm ERR!     at async Arborist.buildIdealTree (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:216:7)
npm ERR!     at async Promise.all (index 1)
npm ERR!     at async Arborist.reify (D:NodeJS
ode_modules
pm
ode_modules@npmcliarboristlibarborist
eify.js:149:5)
npm ERR!     at async Install.install (D:NodeJS
ode_modules
pmlibinstall.js:170:5) {
npm ERR!   code: 'EPERM',
npm ERR!   syscall: 'open',
npm ERR!   path: 'D:\NodeJS

ode_cache_cacache\tmp\7bbab18e’,

npm ERR! type: ‘system’,

npm ERR! requiredBy: ‘.’

npm ERR! }

npm ERR!

npm ERR! The operation was rejected by your operating system.

npm ERR! It’s possible that the file was already in use (by a text editor or antivirus),

npm ERR! or that you lack permissions to access it.

npm ERR!

npm ERR! If you believe this might be a permissions issue, please double-check the

npm ERR! permissions of the file and its containing directories, or try running

npm ERR! the command again as root/Administrator.

(base) PS F: utorial-frontendwebpackcode> npm i webpack webpack-cli –save-dev

npm ERR! code EPERM

npm ERR! syscall open

npm ERR! path D:NodeJS

ode_cache_cacache mp71f2a33

npm ERR! errno EPERM

npm ERR! FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/webpack: EPERM: operation not permitted, open ‘D:NodeJS

ode_cache_cacache mp71f2a33’

npm ERR! at D:NodeJS

ode_modules

pm

ode_modulesminipass-fetchlibody.js:162:15

npm ERR! at async Arborist.[nodeFromEdge] (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:1061:19)

npm ERR! at async Arborist.[buildDepStep] (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:930:11)

npm ERR! at async Arborist.buildIdealTree (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:216:7)

npm ERR! at async Promise.all (index 1)

npm ERR! at async Arborist.reify (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarborist

eify.js:149:5)

npm ERR! at async Install.install (D:NodeJS

ode_modules

pmlibinstall.js:170:5)

npm ERR! FetchError: Invalid response body while trying to fetch https://registry.npmjs.org/webpack: EPERM: operation not permitted, open ‘D:NodeJS

ode_cache_cacache mp71f2a33’

npm ERR! at D:NodeJS

ode_modules

pm

ode_modulesminipass-fetchlibody.js:162:15

npm ERR! at async Arborist.[nodeFromEdge] (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:1061:19)

npm ERR! at async Arborist.[buildDepStep] (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:930:11)

npm ERR! at async Arborist.buildIdealTree (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarboristuild-ideal-tree.js:216:7)

npm ERR! at async Promise.all (index 1)

npm ERR! at async Arborist.reify (D:NodeJS

ode_modules

pm

ode_modules@npmcliarboristlibarborist

eify.js:149:5)

npm ERR! at async Install.install (D:NodeJS

ode_modules

pmlibinstall.js:170:5) {


npm ERR! code: ‘EPERM’,

npm ERR! syscall: ‘open’,

npm ERR! path: ‘D:\NodeJS

ode_cache_cacache\tmp\671f2a33’,

npm ERR! type: ‘system’,

npm ERR! requiredBy: ‘.’

npm ERR! }

npm ERR!

npm ERR! The operation was rejected by your operating system.

npm ERR! It’s possible that the file was already in use (by a text editor or antivirus),

npm ERR! or that you lack permissions to access it.

npm ERR!

npm ERR! If you believe this might be a permissions issue, please double-check the

npm ERR! permissions of the file and its containing directories, or try running

npm ERR! the command again as root/Administrator.



2 错误详解

该错误发生在修改

npm

的全局安装路径之后，再执行

npm install 包 -g

或是

npm install 包

时发生，但是在管理员身份下运行cmd，均能执行成功。



2.1 修改

npm

全局安装：

  1. 命令行： 

    npm config set prefix "D:NodeJS
ode_global"
npm config set cache "D:NodeJS
ode_cache"

    在C盘User/用户名/下有一个

    .npmrc

    的文件

  2. 将上述

    node_global

    文件夹的路径加入环境变量



2.2 导致该安装问题的原因

没有管理员权限，无法在

node_global

和

node_cache

两个文件夹下进行一些必要的操作



2.3 修复方法

  1. 删除用户下的.npmrc文件，即不改变全局安装的路径（不够好，本质问题仍没有解决，全局还是会安装在C盘）
  2. 每次都用管理员身份运行命令行（不够方便，vscode 下的命令行默认也不是管理员身份运行的）
  3. 直接修改

    node_global

    和

    node_cache

    文件夹的权限：

    1. 右键文件夹，打开

      属性

      ，切换到

      安全

      选项卡

      在这里插入图片描述
    2. 选择

      编辑

      ，将没有打钩的位置全部打上钩（即将其它用户的权限设置为与管理员相同），应用即可。



3 运行测试

安装webpack测试，成功！


npm i webpack webpack-cli -g



npm i webpack webpack-cli --save-dev

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