Problem with camera.rect

In Monodevelop the ‘rect’ in camera.rect is highlighted in red.
Why?
I cannot find any reference to this data member of class Camera being depreciated.

public class Camera : McCormickMonoBehaviourBase
{
    // Use this for initialization
    protected override void DoStart()
    {
        Camera cam = GetComponent<Camera> ();
        Rect rect;
        rect = cam.rect;
    }
}

Never mind, I had a Homer Simpson moment (DOOOOHHHH)

I had named my script Camera.cs and Unity was $hitting itself in its confusion between Camera the script and Camera the internal class.