qt 3D canvas instalation,

[QT_user_5000000000]

i cant install 3d Canvas....i thought i had install it, i build it,(it appeared in next to the folder of the source code) btw it is the one in the extras from qt5 right? i used the nmake of visual studio to run the makefile ,i thought that would make the final configurations, but it seems something is wrong, when i run the 3d canvas example, planets, it says: :module "QtCanvas3D" is not installed . i am still a newbie to qt , so i am guessing this is trivial, as i was unable to find any similar topic. any help would be very appreciated :) Thanks in advance