Error: EACCES: permission denied when trying to install ESLint using npm

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I'm trying to install ESLint with npm by going:

npm install -g eslint

However I get the following error:

Deans-Air:~ deangibson$ npm install -g eslint
npm ERR! tar.unpack untar error /Users/deangibson/.npm/eslint/2.4.0/package.tgz
npm ERR! Darwin 15.3.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "eslint"
npm ERR! node v4.2.3
npm ERR! npm  v2.14.7
npm ERR! path /usr/local/lib/node_modules/eslint
npm ERR! code EACCES
npm ERR! errno -13
npm ERR! syscall mkdir

npm ERR! Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/eslint'
npm ERR!     at Error (native)
npm ERR!  { [Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/eslint']
npm ERR!   errno: -13,
npm ERR!   code: 'EACCES',
npm ERR!   syscall: 'mkdir',
npm ERR!   path: '/usr/local/lib/node_modules/eslint',
npm ERR!   fstream_type: 'Directory',
npm ERR!   fstream_path: '/usr/local/lib/node_modules/eslint',
npm ERR!   fstream_class: 'DirWriter',
npm ERR!   fstream_stack: 
npm ERR!    [ '/usr/local/lib/node_modules/npm/node_modules/fstream/lib/dir-writer.js:35:25',
npm ERR!      '/usr/local/lib/node_modules/npm/node_modules/mkdirp/index.js:47:53',
npm ERR!      'FSReqWrap.oncomplete (fs.js:82:15)' ] }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/deangibson/npm-debug.log

And to be honest I get this every single time I try and install something with npm. Sometimes using 'sudo' works, sometimes it doesn't... How can I fix this once and for all?

npm eslint node.js macos
9 Answers

This problem is well documented in the npm docs: Fixing npm permissions.

You have 2 solutions available:

Option 1: Change npm's default directory to a hidden directory in your home folder

mkdir ~/.npm-global
npm config set prefix '~/.npm-global'
export PATH=~/.npm-global/bin:$PATH
source ~/.profile

Option 2: Use a package manager that takes care of this for you

brew install node
user_12652400

Running the following command solved the issue for me while installing my packages.json : 

 sudo npm install --unsafe-perm=true --allow-root

To install only the package which caused the issue:

  sudo npm install -g --unsafe-perm=true --allow-root eslint
user_63000400 
sudo npm install -g --unsafe-perm=true eslint

is sufficient.

user_58559730

Use sudo before tns and it is work for me

Example:

sudo tns create Tekmo --template tns-template-hello-world

if I have used sudo then not found error like to create postinstall.js

Error: EACCES: permission denied

user_103731840

you can login as root using sudo su. First run the command sudo su on your terminal, then give your login password. Finally execute your expected command npm install -g eslint. It works for me.

user_44723980

For MAC user provide the access permission to project directory folder

  1. Right click on project directory folder
  2. Select get info
  3. Provide the access permission - Apply to inclosed items
user_27009350

guys, I have fixed it simplely by

sudo npm install

I have tried the toppest answer, it works well too.

user_200397110

Just had the same error while running

npm install -g @ionic/cli native-run cordova-res

To fix, run the following

sudo apt update
sudo apt upgrade -y

I had read the already present solutions but thought there was something else, UNSAFE isn't a safe keyword, lol. While running the command with the --unsafe-perm=true, I noticed it downloading what seemed to be update binaries. So, I updated and tried again.

user_121009210
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