C:\Users\YX\OneDrive\Desktop\test>python pywallet.py --dumpwallet --wallet=.\wallet.dat>wallet.log
Traceback (most recent call last):
  File "pywallet.py", line 2290, in parse_wallet
    d['txIn'].append(parse_TxIn(vds))
  File "pywallet.py", line 2257, in parse_TxIn
    d['prevout_n'] = vds.read_uint32()
  File "pywallet.py", line 2183, in read_uint32
    def read_uint32(self): return self._read_num('<I')
  File "pywallet.py", line 2222, in _read_num
    (i,) = struct.unpack_from(format, self.input, self.read_cursor)
error: unpack_from requires a buffer of at least 4 bytes


Prompt this, what should I do?