E:\> npm install node-sass
npm WARN prefer global [email protected] should be installed with -g
npm WARN prefer global [email protected] should be installed with -g
> [email protected] install E:\node_modules\node-sass
> node scripts/install.js
module.js:442
    throw err;
Error: Cannot find module 'mkdirp'
    at Function.Module._resolveFilename (module.js:440:15)
    at Function.Module._load (module.js:388:25)
    at Module.require (module.js:468:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (E:\node_modules\node-sass\scripts\install.js:7:13)
    at Module._compile (module.js:541:32)
    at Object.Module._extensions..js (module.js:550:10)
    at Module.load (module.js:458:32)
    at tryModuleLoad (module.js:417:12)
    at Function.Module._load (module.js:409:3)
[email protected] E:\
+-- [email protected]  extraneous
+-- [email protected]
+-- [email protected]  extraneous
`-- [email protected]  extraneous
This is the end of installation log:
npm ERR! Windows_NT 10.0.10586
npm ERR! argv "C:\\nodejs\\node.exe" "C:\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "node-sass"
npm ERR! node v6.2.0
npm ERR! npm  v3.9.0
npm ERR! code ELIFECYCLE
npm ERR! [email protected] install: `node scripts/install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install script 'node scripts/install.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the node-sass package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node scripts/install.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs node-sass
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls node-sass
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR!     E:\npm-debug.log
Full installation log — http://plnkr.co/edit/xBc5ZGbDl1sOtNAxZKYs