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

My solution:

sudo chown -R $USER /usr/local/lib/node_modules/NAMEOFMODULE

in my case was :

sudo chown -R $USER /usr/local/lib/node_modules/appium/

But I was getting the same problem, finally after

npm cache clean

it worked !