Qt3D

hi everyone
I have installed Qt3D module. But now i have problem this code:

Code:

---

import QtQuick 2.0
import Qt3D 2.0
 
 
Viewport {
 
     width: 640; height: 480
     Item3D {
         id: teapot
 
         mesh: Mesh { source: "teapot.bez" }
         effect: Effect {}
 
     }
 
 }

---

Work fine it will compile it and run it but for example i allways get message Item3D unknown component(M300) i know it is small thing but you know :D

and second thing every running i get this post "Module 'Qt3D' does not contain a module identifier directive - it cannot be protected from external registrations." WHat this mean?