compile the VOS library from source codes

Hi, there

I followed the "Video Occupancy Sensor Source Build Guide for Outdoors Release" to try to build the VOS library from the sources so that I can trace it. I want o build a debug library. After finishing importing the vos_lib_project into the workspace, I can't compile the project. The "build" icon is simply grayed out. I can't Set Active in the Build Configurations for the same reason. I also tried to download the older version of CCES, but failed to locate them on the internet. I've also tried to run the pre build command vos.bat, but also failed. It seems to me that the path is not setup correctly to find the blkfn.exe. Maybe it is not supposed to be run manually, I don't know.

Any comment ?