Latest converter update is confusing and has weird issues...

I’m wondering what’s the best way to install the Python module. In the past, I simply copy paste all the files in the source into the folder where the gltf asset is, and then run the Python tool:

But in the latest update the tools have grown and when I tested a conversion using the tests asset, I keep getting weird error:

TATATs-MacBook-Pro:Start_Walking jimmyg$ python gltf2usd.py -g Start_Walking.gltf -o Start_Walking.usdz
converted usd file extension from .usdz to .usdc: Start_Walking.usdc
Traceback (most recent call last):
  File "gltf2usd.py", line 726, in <module>
    convert_to_usd(args.gltf_file, args.usd_file, args.fps, args.scale, args.arkit, args.verbose, args.use_euler_rotation)
  File "gltf2usd.py", line 679, in convert_to_usd
    usd = GLTF2USD(gltf_file=gltf_file, usd_file=usd_file, fps=fps, scale=scale, verbose=verbose, use_euler_rotation=use_euler_rotation)
  File "gltf2usd.py", line 68, in __init__
    self.convert()
  File "gltf2usd.py", line 655, in convert
    self._convert_images_to_usd()
  File "gltf2usd.py", line 414, in _convert_images_to_usd
    shutil.copyfile(image_path, image_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 69, in copyfile
    raise Error("`%s` and `%s` are the same file" % (src, dst))
shutil.Error: `Boss_diffuse.png` and `/Users/jimmyg/Documents/PROJECT20180922/Madain_Saleh/anim3/tests/assets/Start_Walking/Boss_diffuse.png` are the same file

UPDATE: Regarding me being dumb copy pasting the script into the folder, I just realized I can keep the original Tool, then open terminal inside the source tool folder and then drag and drop the GLTF file to be converted and then simply just output the result inside any folder. I am still getting familiar with commands and terminal.

For example:

[kcoley]

Yep, this model is the issue I have been chasing down for a few weeks. I think your simpler model may help with troubleshooting as the walking animation is quite complex to analyze.

[kcoley]

@enzyme69 I did some reorganization of the project in the lastest merge, so now you just need gltf2usd.py, __init__.py, and the _usdz folder. Hopefully that makes things easier to move around.