NPM: npm-cli.js not found when running npm

Question

Usually I can install a library using npm but today when installing yeoman I encountered this errors. Please help to figure out what's root cause.

D:\Works\phonegap\ionic\todo>npm install -g yo
    module.js:340
    throw err;
          ^
Error: Cannot find module 'C:\Program Files\nodejs\node_modules\npm\bin\node_modules\npm\bin\npm-cli.js'

at Function.Module._resolveFilename (module.js:338:15)
at Function.Module._load (module.js:280:25)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3

I looked into the folder:

C:\Program Files\nodejs\node_modules\npm\bin\

but don't see node_modules folder as the error described.

I also try to find npm-cli.js and see it's actually in C:\Program Files\nodejs\node_modules\npm\bin\

Answer 1

It turns out the issue is due to the wrong path of node in system variable. The path is currently pointing to

(I really don't know when I modified it)

C:\Program Files\nodejs\node_modules\npm\bin

so I change to

C:\Program Files\nodejs

and it works like a charm.

Answer 2

You need to run this in the command line.

SET PATH=C:\Program Files\Nodejs;%PATH%