Getting error "EACCES: permission denied" when i install cypress - cypress

Question

When i try to install cypress using this commnad:
sudo npm install cypress
or
sudo npm install -g cypress
It is giving me this error:
Error: EACCES: permission denied, open '/Users/humac/node_modules/cypress/cypress.zip'

Answer 1

Workaround: sudo npm install --unsafe-perm=true --allow-root cypress

Answer 2

In my case cypress had trouble accessing /root/.cache/Cypress upon npm install:
EACCES: permission denied, mkdir '/root/.cache/Cypress'
I found a relevant issue and ended up setting a custom cache dir:
export CYPRESS_CACHE_FOLDER=/app/.cache
npm install

Answer 3

Try using yarn package manager or downgrading npm to version 7.
For me it worked correctly.
I'm using Jenkins in an alpine linux container with node 16.
stage('Prepare-build') {
steps {
sh 'node --version'
sh 'npm --version'
sh 'ls -p'
sh 'git config --global --add safe.directory "*"'
sh 'yarn install'
}
}
The error I was getting is the following:
npm ERR! code 1
npm ERR! path /home/jenkins/agent/workspace/project/app/project-web-manager/node_modules/cypress
npm ERR! command failed
npm ERR! command sh /tmp/postinstall-716e113e.sh
npm ERR! Cypress cannot write to the cache directory due to file permissions
npm ERR!
npm ERR! See discussion and possible solutions at
npm ERR! https://github.com/cypress-io/cypress/issues/1281
npm ERR!
npm ERR! ----------
npm ERR!
npm ERR! Failed to access /root/.cache/Cypress:
npm ERR!
npm ERR! EACCES: permission denied, mkdir '/root/.cache/Cypress'
npm ERR!
npm ERR! ----------
npm ERR!
npm ERR! Platform: linux-x64 (Alpine Linux - 3.16.1)
npm ERR! Cypress Version: 10.6.0
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2022-08-18T17_09_27_887Z-debug-0.log
In my same case export the environment variable cypress cache folder did not work as expected, the error was even made mentioned above.
export CYPRESS_CACHE_FOLDER="/home/jenkins/agent/workspace/project/app/.cache"

Answer 4

After clearing my Cypress cache folder with cypress clear cache I ran into this issue as well.
This is what I did:
sudo rm -rf the Cypress folder in your .cache directory
For me I also deleted the Cypress folder in node_modules
Cleaned cache with npm cache clean --force
Installed Cypress with npm install cypress --save-dev
Hope this helps!

Answer 5

In my case I had issues running Cypress on Mac
An unexpected error occurred while verifying the Cypress executable.
----------
Error: EACCES: permission denied, open '/Users/me/Library/Caches/Cypress/9.7.0/binary_state.json'
----------
Platform: darwin-x64 (22.2.0)
Cypress Version: 9.7.0
The easiest think to do is to locate the folder within Finder app, and for both "Cypress" and "9.7.0" folder and adjust the permissions for "everyone" and "staff" to "Read & Write".
Note: You must click on the lock icon and use your mac admin/system password to change the permissions.