Problems with Node? It’s not uncommon.
So, have you got the latest version?
node -v
v0.10.28
npm -v
0.01
OK, that’s not good. Even if you have newish versions though and you can’t get it working it’s often best just to start from scratch.
Clear Node & NPM
sudo rm -rf /usr/local/lib/node_modules/npm/
brew uninstall node
Now try:
node -v
Still installed? brew uninstall again (you might have installed from the DMG or something).
Now check your setup:
brew doctor
If you have any Broken symlinks prune them:
brew prune
Keep going round those loops till Node is gone.
Reinstall with Homebrew
brew install node
node -v
v5.1.1
npm -v
3.3.12
Ok? better.
Updating Node
From time to time, you need to update, Homebrew has you covered:
brew update
brew doctor
# clear up any issues
brew upgrade node
Which should update Node and NPM.
Grunt
Frequently, you will want to clone an existing project and start work. If it depends on grunt you will need to install the project dependencies:
# install grunt globaly (by putting it in your path)
npm install -g grunt-cli
# install project dependencies
cd /project
npm install
Hopefully all done. You should be able to run Grunt now.