If you must update node

[ben]

@erit

Delete your current ~/.npm folder rm -rf ~/.npmInstall latest NPM: npm install -g npm@latestMay need to: sudo chown -R $(whoami) /usr/local/lib/node_modules/Delete your current sage/node_modules folderrun npm install from sage directory again

Please just use nvm as recommended in Npm Debugging Guidelines (Failed npm install, bower install, or gulp build? Read this) - #4 by austin