Cannot find namespace angular

[vasuneet]

i used the following statement in typescript source file as below referred from angular.io documentation declare var angular:angular.IAngularStatic;

But it giving me error - Cannot find namespace angular.

I tested the same in quickstart project also. same issue

I am referring this from the following url -

https://angular.io/docs/ts/latest/guide/upgrade.html#!#making-angularjs-dependencies-injectable-to-angular

[Foxandxss]

Are you installing Angular types?

[vasuneet]

yes. However in compiling no issue but in IDE it is showing this.