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I get an installation error, when trying to install Firebase


I am typing npm install -g firebase-tools but terminal gives me this message:

checkPermissions Missing write access to /usr/local/lib/node_modules npm ERR! path /usr/local/lib/node_modules npm ERR! code EACCES npm ERR! errno -13 npm ERR! syscall access npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules' npm ERR! { [Error: EACCES: permission denied, access '/usr/local/lib/node_modules'] npm ERR! stack: npm ERR! 'Error: EACCES: permission denied, access \'/usr/local/lib/node_modules\'', npm ERR! errno: -13, npm ERR! code: 'EACCES', npm ERR! syscall: 'access', npm ERR! path: '/usr/local/lib/node_modules' } npm ERR! npm ERR! The operation was rejected by your operating system. npm ERR! It is likely you do not have the permissions to access this file as the current user 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 (though this is not recommended).

npm ERR! A complete log of this run can be found in: npm ERR!
/Users/skltn/.npm/_logs/2018-07-08T19_03_42_011Z-debug.log Skeletons-MacBook-Pro:~ skltn$ firebase --help -bash: firebase: command not found Skeletons-MacBook-Pro:~ skltn$ firebase -login -bash: firebase: command not found Skeletons-MacBook-Pro:~ skltn$ npm install -g firebase-tools npm WARN checkPermissions Missing write access to /usr/local/lib/node_modules npm ERR! path /usr/local/lib/node_modules npm ERR! code EACCES npm ERR! errno -13 npm ERR! syscall access npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules' npm ERR! { [Error: EACCES: permission denied, access '/usr/local/lib/node_modules'] npm ERR!
stack: npm ERR! 'Error: EACCES: permission denied, access \'/usr/local/lib/node_modules\'', npm ERR! errno: -13, npm ERR!
code: 'EACCES', npm ERR! syscall: 'access', npm ERR! path: '/usr/local/lib/node_modules' } npm ERR! npm ERR! The operation was rejected by your operating system. npm ERR! It is likely you do not have the permissions to access this file as the current user 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 (though this is not recommended).

npm ERR! A complete log of this run can be found in: npm ERR!
/Users/skltn/.npm/_logs/2018-07-08T19_05_23_066Z-debug.log Skeletons-MacBook-Pro:~ skltn$

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Answers

answered 5 mon ago aircraft #1

This is a permission error, you should use sudo:

sudo npm install -g firebase-tools

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