Getting a ChunkLen Error "not defined"

[minhanh1234]

I am getting the following error while i am trying to create a aff4 file. I am running the following command:

python3 aff4.py -r --create-logical test.aff4 /home/development/E01_Files/

    Adding: /home/development/E01_Files/Program Files/Messengernewalert.wav
    Adding: /home/development/E01_Files/Program Files/Mozilla Firefoxplc4.dll
    Adding: /home/development/E01_Files/Program Files/AIM6coolcore52.dll
    Adding: /home/development/E01_Files/Program Files/Windows Media Player
    Adding: /home/development/E01_Files/Program Files/NetMeetingmst123.dll
    Adding: /home/development/E01_Files/Program Files/Movie Makermoviemk.exe

Traceback (most recent call last): File "aff4.py", line 497, in main(sys.argv) File "aff4.py", line 475, in main addPathNames(dest, args.srcFiles, args.recursive, args.append, args.hash, args.password) File "aff4.py", line 319, in addPathNames addPathNamesToVolume(resolver, volume, pathnames, recursive, hashbased) File "aff4.py", line 292, in addPathNamesToVolume urn = volume.writeLogicalStream(pathname, hasher, fsmeta.length) File "/home/nc3admin/nc3apps/development/E01_Files/pyaff4/pyaff4/container.py", line 404, in writeLogicalStream self.writeCompressedBlockStream(image_urn, filename, readstream) File "/home/nc3admin/nc3apps/development/E01_Files/pyaff4/pyaff4/container.py", line 354, in writeCompressedBlockStream stream.WriteStream(readstream) File "/home/nc3admin/nc3apps/development/E01_Files/pyaff4/pyaff4/aff4_image.py", line 214, in WriteStream bevy.WriteStream(stream, progress=progress) File "/home/nc3admin/nc3apps/development/E01_Files/pyaff4/pyaff4/zip.py", line 516, in WriteStream owner.StreamAddMember( File "/home/nc3admin/nc3apps/development/E01_Files/pyaff4/pyaff4/zip.py", line 952, in StreamAddMember data = stream.read(BUFF_SIZE) File "/home/nc3admin/nc3apps/development/E01_Files/pyaff4/pyaff4/aff4_image.py", line 91, in read if chunkLen < self.owner.chunk_size: NameError: name 'chunkLen' is not defined