Hi there. I'm trying to access to IUserService on a controller without sucess. I try to replicate the tutorial on a controller that inherits from UmbracoApiController.

First off all in tutorial point to namespaces:

using Umbraco.Core; 
using Umbraco.Core.Models; 
using Umbraco.Core.Services; 

But I can only get access using Cms, like this:

using Umbraco.Cms.Core; 
using Umbraco.Cms.Core.Models; 
using Umbraco.Cms.Core.Services; 

After that, when I try to get access to UserService, I get an error, UserService is inacessibel due to it ptotection level.

Any ideas what I've been doing wrong? Regards, L.A.