VIDEOIO ERROR while running demo.py in CPU machine

[Haruo195]

Hi, while running the demo as follows:
python3 demo.py -model=e2e-mlt.h5 -cuda=0

I am getting the error as

make: Entering directory '/home/virenv/ocv-td/E2E/E2E-MLT-master/nms'
make: 'adaptor.so' is up to date.
make: Leaving directory '/home/virenv/ocv-td/E2E/E2E-MLT-master/nms'
e2e-mlt.h5
VIDEOIO ERROR: V4L: can't open camera by index 0

I have changed this line
sp = torch.load(fname)
as sp = torch.load(fname, map_location='cpu') in net_utils.py

(Running in a virtual environment with python 3.5.2, Ubunutu 16.04, CPU machine, NO CUDA, torch version (CPU) '1.0.1.post2', openCV 4.0.0)
Thank you.

[youngkyung]

I have the same issue, did you solve this error?

[AmrMaghraby]

Change it to -1 instead with 0 worked with me

[liutianling]

@AmrMaghraby Hello
I have the issue of making the nms as follows:
g++: error: unrecognized command line option ‘-fno-plt’
Makefile:10: recipe for target 'adaptor.so' failed
make: *** [adaptor.so] Error 1

Can you help me how to fix it?Thanks!