Getting error while running object-detection-and-line-cross.py

[Guttappa1238]

Hi,
I have installed all the requirements, when i ran object-detection-and-line-cross.py i'm getting this error

  File "object-detection-and-line-cross.py", line 330, in <module>
    sys.exit(main() or 0)
  File "object-detection-and-line-cross.py", line 233, in main
    net_det  = ie.read_network(model_det+'.xml', model_det+'.bin')           # model=pedestrian-detection-adas-0002
  File "ie_api.pyx", line 357, in openvino.inference_engine.ie_api.IECore.read_network
  File "ie_api.pyx", line 400, in openvino.inference_engine.ie_api.IECore.read_network
RuntimeError: Unknown model format! Cannot find reader for model format: xml and read the model: intel/pedestrian-detection-adas-0002/FP16/pedestrian-detection-adas-0002.xml. Please check that reader library exists in your PATH.

i have downloaded models too but How can i solve this?