Error while calling cudaGetDevice(&the_device_id) 'dlib::cuda_error'

[MuhammadShifa]

Hello @koide3 ,

thanks for the this great package. I am trying to build from source and successfully build on ros-melodic but whenever I tried to run, I am facing the dlib cuda issue, although I have tried multiple version and also the one you provided but finding no solution. It would be greatly appreciated if someone can help me in this issue.

terminate called after throwing an instance of 'dlib::cuda_error' what(): Error while calling cudaGetDevice(&the_device_id) in file /home/yaman/libs/dlib/dlib/cuda/gpu_data.cpp:204. code: 999, reason: unknown error