Error “Cannot find module 'npmlog'” after “npm update -g”

Question

I have NVM 0.30.1 and used it to install node.js v5.4.0 (with NPM 3.5.4) on Fedora 22. When I run npm update -g, I receive the following warnings:

Answer 1

What fixed this for me was

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

and then re-installing node (with npm).