Impossible build LESS on Windows 10

What I say? In Windows impossible to build Less. No any possible. :(

All logs:

C:\Users\acterhd\Documents\GitHub\less.js>npm install jit-grunt
npm WARN optional Skipping failed optional dependency /chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.0.12

C:\Users\acterhd\Documents\GitHub\less.js>npm install fsevents
npm ERR! Windows_NT 10.0.10586
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "fsevents"
npm ERR! node v6.2.2
npm ERR! npm  v3.9.5
npm ERR! code EBADPLATFORM

npm ERR! notsup Not compatible with your operating system or architecture: fsevents@1.0.12
npm ERR! notsup Valid OS:    darwin
npm ERR! notsup Valid Arch:  any
npm ERR! notsup Actual OS:   win32
npm ERR! notsup Actual Arch: x64

npm ERR! Please include the following file with any support request:
npm ERR!     C:\Users\acterhd\Documents\GitHub\less.js\npm-debug.log

C:\Users\acterhd\Documents\GitHub\less.js>grunt build

jit-grunt: Plugin for the "build" task not found.
If you have installed the plugin already, please setting the static mapping.
See https://github.com/shootaroo/jit-grunt#static-mappings

Warning: Task "build" failed. Use --force to continue.

Aborted due to warnings.


Execution Time (2016-07-04 11:32:34 UTC)
loading tasks  57ms  █████████████████████████████████████████████████████████████████████████████████████ 97%
Total 59ms

Start by reproducing npm install and grunt build on Windows 10 with the Node.js and npm versions shown. Inspect the build configuration and jit-grunt setup after confirming whether the fsevents platform warning is the cause; done means the project installs and grunt build completes successfully on Windows.