C:\Users\XCon2\Desktop\skyblivion-NIFConverter-master>python convert_folder.py "c:\niftest" "c:\niftestconv" -s default -t -c mopp
MOPP_RL.exe uses havok. Copyright 1999-2013 Havok.com Inc. (and its Licensors).
All Rights Reserved. See www.havok.com for details.
Converting c:\niftest\skcastlebase01.nif
Traceback (most recent call last):
  File "copyover_legacy_nif_animations.py", line 1362, in <module>
    parser.parse()
  File "copyover_legacy_nif_animations.py", line 369, in parse
    spell.recurse()
  File "C:\Python33\lib\site-packages\pyffi\spells\__init__.py", line 291, in recurse
    self.recurse(child)
  File "C:\Python33\lib\site-packages\pyffi\spells\__init__.py", line 305, in recurse
    self.recurse(child)
  File "C:\Python33\lib\site-packages\pyffi\spells\__init__.py", line 300, in recurse
    if self.branchentry(branch):
  File "C:\Python33\lib\site-packages\pyffi\spells\nif\optimize.py", line 364, in branchentry
    triangles=triangles)
  File "C:\Python33\lib\site-packages\pyffi\formats\nif\__init__.py", line 6886, in get_interchangeable_tri_shape
    NifFormat.NiTriBasedGeomData().deepcopy(self.data))
  File "C:\Python33\lib\site-packages\pyffi\object_models\xml\struct_.py", line 313, in deepcopy
    attrvalue.deepcopy(getattr(block, attr.name))
  File "C:\Python33\lib\site-packages\pyffi\object_models\xml\array.py", line 207, in deepcopy
    attrvalue.deepcopy(block[i])
  File "C:\Python33\lib\site-packages\pyffi\object_models\xml\array.py", line 67, in __getitem__
    return self._get_item_hook(self, index)
  File "C:\Python33\lib\site-packages\pyffi\object_models\xml\array.py", line 110, in get_item
    return list.__getitem__(self, index)
IndexError: list index out of range
c:\niftest\skcastlebase01.nif conversion failed!

C:\Users\XCon2\Desktop\skyblivion-NIFConverter-master>