Launching gulp I get Error: Cannot find module 'vinyl'

Launching command gulp I get:

Error: Cannot find module 'vinyl'
    at Function.Module._resolveFilename (module.js:336:15)
    at Function.Module._load (module.js:278:25)
    at Module.require (module.js:365:17)
    at require (module.js:384:17)
    at Object.<anonymous> (/usr/local/lib/node_modules/gulp/node_modules/gulp-util/index.js:2:9)
    at Module._compile (module.js:460:26)
    at Object.Module._extensions..js (module.js:478:10)
    at Module.load (module.js:355:32)
    at Function.Module._load (module.js:310:12)
    at Module.require (module.js:365:17)

Already tried

$ rm -fr ./node_modules/
$ npm cache clean
$ npm install

it’s the same.

If I launch node_modules/gulp/bin/gulp.js instead of just gulp, it works.
Where’s the problem?

Solved reinstalling node, npm, and so on from scratch. It’s ok, but I have to say that since Sage gone under Gulp I often have issues from Gulp… It’s frustrating a lot