I have managed to corrupt my npm install, and whenever I try to install packages using npm install, I receive error messages along these lines:
Unhandled rejection Error: EACCES: permission denied, open ‘/Users/marknorgate/.npm/_cacache/tmp/a449402d’
I have tried reinstalling node & npm, and I have also tried to relocate my npm cache elsewhere using these instructions but nothing works.
How can I get it working?