after cross-compile,the sample can't run

hi,
i am running the ./sample_lane_detection after cross-compile in the host pc. the result is :
Program Arguments:
–fov=60
–height=576
–offscreen=0
–threshold=0.3
–video=/usr/local/driveworks-0.3/samples/…/data/samples/laneDetection/video_lane.h264
–width=960

WindowGLFW: Failed create window
Initialize DriveWorks SDK v0.3.400
SDK: Resources mounted from /usr/local/driveworks-0.3/samples/…/data/resources
Driveworks exception thrown: DW_CUDA_ERROR: SDK: cannot acquire cuda context : unknown error
Cannot initialize DW subsystems
Driveworks exception thrown: DW_BAD_CAST: Given handle is NULL
Driveworks exception thrown: DW_BAD_CAST: Given handle is NULL
Driveworks exception thrown: DW_BAD_CAST: Given handle is NULL

Any help is greatly appreciated.

Dear wy,

Did run the ./sample_lane_detection in your hostPC or DPX2?
Could please see below doc page 80~88?

Dear SteveNV

Now I can login the site. but, i can`t access the link (https://developer.nvidia.com/driveworks/getting-started-with-drivepx2).

Dear bgk,

Could you please re-try it? The site is still working well now. Thanks.