Get Data From Camera

Hello,

So I'm new in this world of AR aswell as working with vuforia.

So here's what i want to do:

I have a cube that will rotate (every face of the cube as a color), and then after a while the cube will stop and the color facing the camare will be my target, then i have to move around the "world" and i'll have to find that color. 

So far so good, I've acomplished that, but only using the WebCam Device (Play Mode > PlayMode Type > WEBCAM) where I have acess to the GameObject created called TextureBufferCamera... So here i was thinking it was 100% done.. until i ported to Android... and nothing happend ...

For some reason this GameObject (TextureBufferCamera) is only available on PlayMode - WEBCAM, and it gives me a Null pointer...

I've been searching a way to acess the camera the same way i did with textureBuffer but can't find any good explanation on how to do it...

I'm kinda new to this world and this is my second day using vuforia.