Traceback (most recent call last):


 "src/gevent/greenlet.py", line 716, in gevent._greenlet.Greenlet.run


 "/home/lefteris/ew/raiden/raiden/network/transport/matrix.py", line 458, in _handle_message

self._receive_message(message)


 "/home/lefteris/ew/raiden/raiden/network/transport/matrix.py", line 497, in _receive_message

message_sender=pex(message.sender),


 "/home/lefteris/ew/raiden/raiden/utils/__init__.py", line 112, in pex

return hexlify(data).decode()[:8]
TypeError: a bytes-like object is required, not 'NoneType'

> Traceback (most recent call last):


 "/usr/lib/python2.7/logging/__init__.py", line 861, in emit

msg = self.format(record)


 "/usr/lib/python2.7/logging/__init__.py", line 734, in format

return fmt.format(record)


 "/usr/lib/python2.7/logging/__init__.py", line 465, in format

record.message = record.getMessage()


 "/usr/lib/python2.7/logging/__init__.py", line 329, in getMessage

msg = msg % self.args
TypeError: not all arguments converted during string formatting
