PureThermal 3 + Lepton 3.5 + Ubuntu: error "uvc_open error"

[Navid M]

Hello,

I'm new to PureThermal3 + Lepton. I installed VM (Ubuntu 20) to test the GroupGets python example. I ran opencv-capture.py easily but got problem with uvc-radiometry.py. I installed groupgets/libuvc using: 

"git clone https://github.com/groupgets/libuvc
cd libuvc
mkdir build
cd build
cmake ..
make && sudo make install"

but when I run the code, I get uvc_open error. 

I'd appreciate it if anyone can help thanks. 

My final goal is to make a Python GUI app that streams video gives the max temperature and logs the full frame temperature in a CSV file but struggling with using libuvc. If you can help with doing that in Windows that would be great. I tried to set it up in windows but libuvc making resulted in errors. Thanks.