Issue using Acr.UserDialogs Nuget

Hi,
I am trying to use this: github.com/aritchie/userdialogs in my Xamarin project but I am facing a problem where when i put the UserDialogs.Init(this); in the MainActivity.cs I get an error saying that "The name 'UserDialogs' does not exist in the current context" I have added in using Acr.UserDialogs; but apparently the namespace Acr could not be found. I have installed the nuget in both the whole solution and in the specific android project. But unlike other nugets I have installed nothing for the Acr.UserDialogs gets added into the references in my android project after I install it. Am I doing something wrong?