Failed to conver from udacity to voc:main.py: error: the following arguments are required: --from-path

[ycyer]

when I run the code :
python3.6 vod_converter/main.py --from udacity --from-/home/ycyer/Udataset1 --to voc --to-path /home/ycyer/VOCdevkit/VOC2012/JPEGImages2
the output is :
sage: main.py [-h] --from FROM_KEY --from-path FROM_PATH --to TO_KEY
--to-path TO_PATH [--select-only-known-labels]
[--filter-images-without-labels]
main.py: error: the following arguments are required: --from-path

I think I didn't write the paty right,but actually I don't know how to set the voc path, can anyone tell me how to fix this?? Thanks for advance!!!