HELP! An error pops up when I try to start a project

Error:

npm WARN ionic-project@1.1.1 No repository field.
npm WARN ionic-project@1.1.1 No license field.
npm ERR! Darwin 15.5.0
npm ERR! argv “/usr/local/bin/node” “/usr/local/bin/npm” "install"
npm ERR! node v6.9.1
npm ERR! npm v3.10.8
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn

npm ERR! node-sass@3.13.0 install: node scripts/install.js
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the node-sass@3.13.0 install script ‘node scripts/install.js’.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the node-sass package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node scripts/install.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs node-sass
npm ERR! Or if that isn’t available, you can get their info via:
npm ERR! npm owner ls node-sass
npm ERR! There is likely additional logging output above.

ionic info:

Cordova CLI: 6.4.0
Ionic CLI Version: 2.1.8
Ionic App Lib Version: 2.1.4
ios-deploy version: 1.9.0
ios-sim version: 5.0.11
OS: OS X El Capitan
Node Version: v6.9.1
Xcode version: Xcode 8.1 Build version 8B62