NPM cannot install dependencies - Attempt to unlock something which hasn't been locked

Question

I\'ve been trying to run an npm install on my package.json file, but I\'m having a lot of trouble. It keeps saying \"Error: Attempt to unlock XXX, which hasn\'t been locke

Answer 1

I had the same problem and tried to fix the permission/ownership of npm related files and directories for hours but had no luck with that.

Suddenly I found that I had ~/.npmrc file with cache entry pointing to a non-existing directory. Removed that cache property to use the default cache location and now it's solved.