Roots won't install

[uxdiva]

I have a fresh install of NodeJS -- just downloaded this week. But I can't get Roots to install.
On Glitter -- someone suggested running a change owner sudo chown -R $USER /usr/local/lib -- Which I did, but that did not fix the problem. I would really like to use this tool, please help.

Here is the error I get. (I've attached the log at the end)

npm ERR! Darwin 15.6.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "i" "roots" "-g"
npm ERR! node v6.9.5
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE

npm ERR! roots@5.1.0 postinstall: node ./post_install.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the roots@5.1.0 postinstall script 'node ./post_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 roots package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./post_install.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs roots
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls roots
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /Users/diva/Sites/eightpix/npm-debug.log
npm-debug.txt

[jescalan]

Check here! #726