Brew: Unable to link Node

[Dalan-Miller]

I am attempting to get node.js to run, I've installed it through brew. Brew doctor informs me that node is not linked. When I attempt to link node I get an error:

Dalans-MacBook-Pro:~ dalanmiller$ brew link node
Linking /usr/local/Cellar/node/6.1.0... 
Error: Could not symlink share/systemtap/tapset/node.stp
/usr/local/share/systemtap/tapset is not writable.

[DomT4]

Can you provide the full brew doctor output? Thanks

[Dalan-Miller]

`Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry and just ignore them. Thanks!

Warning: A newer Command Line Tools release is available.
Update them from Software Update in the App Store.

Warning: You have external commands with conflicting names.

Found command brew-cask in following places:
/usr/local/bin/brew-cask
/usr/local/Library/Taps/caskroom/homebrew-cask/cmd/brew-cask.rb

Warning: You have unlinked kegs in your Cellar
Leaving kegs unlinked can lead to build-trouble and cause brews that depend on
those kegs to fail to run properly once built. Run brew link on these:
node
xz

Warning: Your Xcode (7.3) is outdated
Please update to Xcode 7.3.1.
Xcode can be updated from the App Store.`

[UniqMartin]

Please also have a look at our Troubleshooting Guide, follow (all of) the steps therein, and post the requested information here so we can help you better with your problem. Thanks!

[Dalan-Miller]

Ok, I have a Gist if you need it: https://gist.github.com/anonymous/f675385468f52797722fe460e9dc3d21

[UniqMartin]

Have you tried following this advice from the Check for common issues section of the document I linked you to?

• If things fail with permissions errors, check the permissions in /usr/local. If you’re unsure what to do, you can sudo chown -R $(whoami) /usr/local.

I believe this should resolve your trouble.

---

Regarding this output from brew doctor:

Warning: You have external commands with conflicting names.

Found command brew-cask in following places:
/usr/local/bin/brew-cask
/usr/local/Library/Taps/caskroom/homebrew-cask/cmd/brew-cask.rb

You can run brew uninstall brew-cask. It's no longer necessary to install brew-cask as a formula, as nowadays tapping Caskroom/cask is sufficient.

[Dalan-Miller]

Have you tried following this advice from the Check for common issues section of the document I linked you to?

If things fail with permissions errors, check the permissions in /usr/local. If you’re unsure what to do, you can sudo chown -R $(whoami) /usr/local.
I believe this should resolve your trouble.

This worked, thank you!