How do i build the project for angular 2

[bacem-g]

I have an angular 2 project. I installed angular2-busy dependency with npm.
Then, i got a compile error: "ERROR in ./~/angular2-busy/build/busy-backdrop.component.js
Module not found: Error: Can't resolve '@angular/animations".
I make a google search on this and i found that the module @angular/animations have been introduced since angular 4, and is not included in angular 2.
So, my request is how should i build the source of angular2-busy to be compatible with an angular 2 project ?