Error: Cannot find module 'ionic-gulp-sass-build'

[mnasirkhan]

Error: Cannot find module 'ionic-gulp-sass-build'
at Function.Module._resolveFilename (module.js:555:15)
at Function.Module._load (module.js:482:25)
at Module.require (module.js:604:17)
at require (internal/module.js:11:18)
at Object. (C:\xampp\htdocs\mobile\ionic2\gulpfile.js:31:17)
at Module._compile (module.js:660:30)
at Object.Module._extensions..js (module.js:671:10)
at Module.load (module.js:573:32)
at tryModuleLoad (module.js:513:12)
at Function.Module._load (module.js:505:3)