Can't access HumanPose

I am trying to access classes HumanPose and HumanPoseHanlder:

http://docs.unity3d.com/540/Documentation/ScriptReference/HumanPose.html
http://docs.unity3d.com/540/Documentation/ScriptReference/HumanPoseHandler.html

Howerver, Unity doesn't find them:


This classes extends from anything in particular? (Already tried extend from Editor and EditorWindow).

Unity Version. 5.4.0b (also tried with 5.0.1)

Any ideias?

 

For some reason I had an class using namespace UnityEngine which means that was overriding the original "UnityEngine", so, HumanPose could never be found that way. If you have a similar problem and you are using VS, you can select your reference and press F12, that will redirect you to the reference, and check if the class you are using is there.