Error when using "gulp" command

[tsinflam2]

After "npm install" (I use 4.1.2 version of node.js)
and type "gulp"
the following error pops up. Any advice?

~/Desktop/rosweb$ gulp build
/home/johnny-xxxx/Desktop/rosweb/node_modules/gulp-sass/node_modules/node-sass/lib/binding.js:13
      throw new Error(errors.unsupportedEnvironment());
      ^

Error: Node Sass does not yet support your current environment: Linux 64-bit with Unsupported runtime (57)
For more information on which environments are supported please see:
https://github.com/sass/node-sass/releases/tag/v3.13.1
    at module.exports (/home/johnny-xxxx/Desktop/rosweb/node_modules/gulp-sass/node_modules/node-sass/lib/binding.js:13:13)
    at Object.<anonymous> (/home/johnny-xxxx/Desktop/rosweb/node_modules/gulp-sass/node_modules/node-sass/lib/index.js:14:35)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/home/johnny-xxxx/Desktop/rosweb/node_modules/gulp-sass/index.js:187:21)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)