problem loading NEO app onto ledger blue

[Deleted user]

I was trying to build the NEO app and load it on my ledger blue.
The app build ran fine. I had to update the target id as per issue #2, but then it failed with a python error:

python3 -m ledgerblue.loadApp --path "44'/888'" --appFlags 0x40 --apdu --tlv --targetId 0x31010004 --delete --fileName bin/app.hex --appName "NEO" --appVersion 1.3.1 --dataSize `cat debug/app.map |grep _nvram_data_size | tr -s ' ' | cut -f2 -d' '`
Generated random root public key : b''
HID => e00400000431010004
HID <= 9000
HID => e050000008130e97b0d9b64430
HID <= 00000002c919dfedef2d1eb19000
Using test master key b'' 
HID => 
HID <= 9000
Using ephemeral key b''
HID => 
HID <= 9000
HID => e052000000
HID <= 
Broken certificate chain - loading from user key
HID => e052800000
HID <= 
HID => e053000000
HID <= 9000
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/usr/local/lib/python3.5/dist-packages/ledgerblue/loadApp.py", line 181, in <module>
    loader.deleteApp(args.appName)
  File "/usr/local/lib/python3.5/dist-packages/ledgerblue/hexLoader.py", line 356, in deleteApp
    self.exchange(self.cla, 0x00, 0x00, 0x00, data)						
  File "/usr/local/lib/python3.5/dist-packages/ledgerblue/hexLoader.py", line 188, in exchange
    data = self.scpWrap(data)
  File "/usr/local/lib/python3.5/dist-packages/ledgerblue/hexLoader.py", line 229, in scpWrap
    cipher = AES.new(self.key, AES.MODE_CBC, self.iv)
  File "/usr/local/lib/python3.5/dist-packages/Crypto/Cipher/AES.py", line 95, in new
    return AESCipher(key, *args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/Crypto/Cipher/AES.py", line 59, in __init__
    blockalgo.BlockAlgo.__init__(self, _AES, key, *args, **kwargs)
  File "/usr/local/lib/python3.5/dist-packages/Crypto/Cipher/blockalgo.py", line 141, in __init__
    self._cipher = factory.new(key, *args, **kwargs)
TypeError: a bytes-like object is required, not 'NoneType'

(removed long hex strings to format better, can put them back if needed)

[TamtamHero]

This is linked to the ledgerblue python library, you should update it to its last version and this error will disappear.