karma command not found when karma already installed

Question

I used node.js to install karma. My first try failed when running the following command on Terminal:

npm install -g karma

That failed so I dec

Answer 1

Don't need to completely uninstall node.js

Just

sudo rm -rf /usr/local/lib/node_modules/npm/

Then
install node.js

Then
reinstall karma

This worked for me.