The type or namespace name `BackgroundPlaneAbstractBehaviour' could not be found.

Hello My friends…i have a problem that it’s make me literally crazy.
when i play my RA proyect is all ok, but when i try tu build the make many error…like you see in the picture.
for example:

Assets/Vuforia/Scripts/BackgroundPlaneBehaviour.cs(18,45): error CS0246: The type or namespace name `BackgroundPlaneAbstractBehaviour’ could not be found. Are you missing a using directive or an assembly reference?

this happend in this unity version 5.3…i had before 5.1 version and all is ok.

search in internet i found that if i put the scripts in the editor folder is fix. i try to do this and then i lost all the reference of the scripts of my imagen target and the camera…
somebody have some answerd to help me?

thanks…humm i don’t speak english very well (my native languaje is spanish), but i can read so no problem whit your answers…

i resolved…just reinstall de vuforia packet… thanks to every body…now i have another problem…lol

hello,

It seems that when you import Vuforia Asset Package, depending on your platform, some files are used. But when you work on different platform, you need to reimport Vuforia Package.

Some problem for me when working on PC, then on OSX

Hope it will help Someone!