Can't install node-sass

Question

I am attempting to install node-sass and it just won't let me. I have tried updating npm.

I put this in:

sudo npm install -g node-sass

and i get this (starting one line before the error):

gyp verb build dir attempting to create "build" dir: 
/Users/matt/node_modules/node-sass/build
gyp ERR! configure error
gyp ERR! stack Error: EACCES: permission denied, mkdir 
'/Users/matt/node_modules/node-sass/build'
gyp ERR! System Darwin 17.7.0
gyp ERR! command "/usr/local/bin/node" 
"/Users/matt/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "- 
-verbose" "--libsass_ext=" "--libsass_cflags=" "-- 
libsass_ldflags=" "--libsass_library="
gyp ERR! cwd /Users/matt/node_modules/node-sass
gyp ERR! node -v v8.11.1
gyp ERR! node-gyp -v v3.7.0
gyp ERR! not ok
Build failed with error code: 1
npm WARN enoent ENOENT: no such file or directory, open                     
'/Users/matt/package.json'
npm WARN [email protected] requires a peer of ajv@^6.0.0 but         
none is installed. You must install peer dependencies yourself.
npm WARN matt No description
npm WARN matt No repository field.
npm WARN matt No README data
npm WARN matt No license field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] postinstall script.
npm ERR! This is probably not a problem with npm. There is 
likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/matt/.npm/_logs/2018-08-02T16_18_15_228Z- 
debug.log

Answer 1

sudo npm install -g --unsafe-perm node-sass

This must fix the problem