npm - EPERM operation not permitted on Windows

Question

I ran   npm config set prefix  usr local   After running that command  When trying to run any npm commands on Windows OS I keep getting the below    Error  EPERM  operation not permitted  mkdir  C  Program Files  x86  Git local  at Error  native    Have deleted all files from   C  Users  lt your username gt   config configstore    It did not work   Any suggestion

User · Answer

Simplest way

Hope I am not too late for this post but recently even I too got hit by this issue. And also I had no admin rights on my laptop.

Here is the simplest way I fixed the bug.

Locate the file name .npmrc (it will be in C:\Users\<user name>\.npmrc)
Open it and change the path of prefix= to prefix=C:\Users\<user name>\AppData\Roaming\npm

hope it will be helpful..

User · Answer

I had an outdated version of npm  I ran a series of commands to resolve this issue   npm cache clean --force   Then   npm install -g npm latest --force   Then  once again    npm cache clean --force   And finally was able to run this  installing Angular project  without the errors I was seeing regarding EPERM   ng new myProject

User · Answer

for me it was an issue of altering existing folders in node module  so i nuked the whole folder and run npm install again  it works with no errors after that

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I updated my node version to 8 9 4 and ran the necessary install command again from administrator command prompt  It worked for me

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Apparently anti-virus software can also cause this error   In my case I had Windows Security s Ransomware Protection protecting my user folders which caused this error

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If cleaning the cache npm cache clean --force  doesn t help you just delete manually the folder C  Users  USER NAME  AppData Roaming npm-cacheand and reinstall NodeJS

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I solved the problem by changing windows user access for the project folder  Here is a screenshot  http   prntscr com djdn0g

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npm install cross-env Try this it worked for me

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Find this command npm cache clean as a solution to those error in quick and simple way

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Windows 10   Running the IDE  in my case IntelliJ  in administrator mode and executing npm install does resolves the problem   If no IDE then run CMD in administrator mode and try executing npm install

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I recently had the same problem when I upgraded to the new version  the only solution was to do the downgraded  To uninstall   npm uninstall npm -g   Install the previous version    npm install npm 5 3 -g   Try update the version in another moment

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I had the same problem  after updating npm  Solved it by re-installing latest npm again with   npm i -g npm   but this time with cmd running in administrating mode   i did all this because i suspected there was an issue with the update  mostly some missing files

User · Answer

Likely when you experience this issue  it is possible is a permission issue on your PC  Going to the PC properties and granting which ever account you use on your PC full control will solve it  Again command  usr local doesn t work on windows

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I was running create-react-app server  Simply stopped the server and everything worked just fine

User · Answer

Try to install npm package by running CMD as Administrator  you can headover to broad discussion on this bug at npm install throwing error EPERM

User · Answer

Running this command was my mistake      npm config set prefix  usr local   Path  usr local is not for windows  This command changed the prefix variable at  C  Program Files  x86  Git local   To access and make a change to this directory I need to run my cmd as administrator    So I did    Run cmd as administrator Run npm config edit  You will get notepad editor  Change prefix variable to C  Users  lt User Name gt  AppData Roaming npm   Then npm start works in a normal console

User · Answer

Just run cmd as admin  delete old node modules folder and run npm install again

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I use Windows 10  I started the CMD as administrator  and it solved the problem   Find CMD  right click  and click open as administrator

User · Answer

If you getting this error in an IDE s terminal commands prompt  try delete node modules  close IDE  and run the npm install command again  The time when IDE started but still not completed its analysis of node modules tree is a tricky moment  when packages installation may fail because IDE still scanning node modules contents

User · Answer

Running npm commands in Windows Powershell solved my issue

User · Answer

In my case  I was facing this error because my directory and its file were opened in my editor  VS code  while I was running npm install  I solved the issue by closing my editor and running npm install through the command line

User · Answer

Happened to me since the folder file was locked by another process  Used a tool  LockHunter  to terminate that process and it started working again  possible reason

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Restarting VsCode solved it for me

User · Answer

For me  It was an issue with the  npmrc file  Which is present in C  Users myname npmrc Somehow the content of  npmrc file got changed  I have changed the content by comparing with my colleagues laptop  So it solved    For reference  I am adding the content of  npmrc file too           npm userconfig file   this is a simple ini-formatted file   lines that start with semi-colons are comments    read  npm help config  for help on the various options           registry npmjs org   authToken 95632bcf-3056-4538-b57d-38426736e3a0  scope true   true registry https   registry npmjs org           all options with default values         access null    allow-same-version false    always-auth false    also null    audit true    audit-level low    auth-type legacy    before null    bin-links true    browser null    ca null    cafile undefined    cache C  Users myname AppData Roaming npm-cache    cache-lock-stale 60000    cache-lock-retries 10    cache-lock-wait 10000    cache-max null    cache-min 10    cert null    cidr null    color true    depth null    description true    dev false    dry-run false    editor notepad exe    engine-strict false    force false    fetch-retries 2    fetch-retry-factor 10    fetch-retry-mintimeout 10000    fetch-retry-maxtimeout 60000    git git    git-tag-version true    commit-hooks true    global false    globalconfig C  Users myname AppData Roaming npm etc npmrc    global-style false    group 0    ham-it-up false    heading npm    if-present false    ignore-prepublish false    ignore-scripts false    init-module C  Users myname  npm-init js    init-author-name     init-author-email     init-author-url     init-version 1 0 0    init-license ISC    json false    key null    legacy-bundling false    link false    local-address undefined    loglevel notice    logs-max 10    long false    maxsockets 50    message  s    metrics-registry null    node-options null    node-version 10 15 2    offline false    onload-script null    only null    optional true    otp null    package-lock true    package-lock-only false    parseable false    prefer-offline false    prefer-online false    prefix C  Program Files nodejs    preid     production false    progress true    proxy null    https-proxy null    noproxy null    user-agent npm  npm-version  node  node-version   platform   arch     read-only false    rebuild-bundle true    registry https   registry npmjs org     rollback true    save true    save-bundle false    save-dev false    save-exact false    save-optional false    save-prefix      save-prod false    scope     script-shell null    scripts-prepend-node-path warn-only    searchopts     searchexclude null    searchlimit 20    searchstaleness 900    send-metrics false    shell C  windows system32 cmd exe    shrinkwrap true    sign-git-commit false    sign-git-tag false    sso-poll-frequency 500    sso-type oauth    strict-ssl true    tag latest    tag-version-prefix v    timing false    tmp C  Users myname AppData Local Temp    unicode false    unsafe-perm true    update-notifier true    usage false    user 0    userconfig C  Users myname  npmrc    umask 0    version false    versions false    viewer browser     exit true    globalignorefile C  Users myname AppData Roaming npm etc npmignore

User · Answer

A reboot of my laptop and then  npm install  worked for me

User · Answer

I had the same issue  as I was using my company LAN  And I just ran cmd exe npm and I was able to execute my other commands without any error after that   C  Users 586656 gt cmd exe npm Microsoft Windows  Version 10 0 14393   c  2016 Microsoft Corporation  All rights reserved    Just sharing this  as it may help other folks who try to do this in their office LAN  Thank you

User · Answer

This error is caused by different problems try the below one of them will work for you   try to run npm as Administrator  Run cmd as administrator npm config edit  You will get notepad editor  Change Prefix variable to C  Users  lt User Name gt  AppData Roaming npm  The errors went after I disabled my anti-virus  Avast   Sometimes a simple cache clear like the below would fix it   npm cache clear

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Same to me  My solution was close Android studio  AVD Manager  Visual Studio and reinstall  I executed this command to update my expo cli   npm install -g expo-cli

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After trying everything and nothing works  Moving my working project folder to diffrent destination worked for me

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Sometimes  all that s required is to stop the dev server before installing updating packages

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Try npm i -g npm   NPM version  6 9 is work to me

User · Answer

I had the same problem when I tried to install the npm package AVA  The solution for me was to delete the node modules folder and force-clean the npm cache   rm -rf node modules npm cache clean --force   I could then install the npm package without a problem

User · Answer

The simplest and easiest thing to do is simply delete the  node modules  And make sure your internet is stable then run   npm install  amcharts amcharts4  OR  if you are using yarn  yarn add  amcharts amcharts4  This worked for me seamlessly

User · Answer

For those trying to update config  If having trouble updating your npm config  try instead running using the -g flag  This solved the issue on Win 10 for me after trying everything else   npm config edit -g   I am able to update the config and changes are reflected everywhere   This may be due to  running npm in an organizational scope

User · Answer

If using company LAN  disconnect try with other internet network

User · Answer

This is occurring because windows is not giving permission to the user to create a folder inside system drive  To solve this   Right Click   The Folder   Properties   Security Tab  Click on Edit to change Permissions   Select the user and give Full Control to that user

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