_on_connect() missing 1 required positional argument: 'initial_data'

[pschakravarthi]

Client unexpectedly disconnected:
_on_connect() missing 1 required positional argument: 'initial_data'
Traceback (most recent call last):
File "/cbot/node_modules/hubot-hangups/HangoutsBot/hangupsbot.py", line 137, in run
loop.run_until_complete(self._client.connect())
File "/usr/lib64/python3.4/asyncio/base_events.py", line 373, in run_until_complete
return future.result()
File "/usr/lib64/python3.4/asyncio/futures.py", line 274, in result
raise self._exception
File "/usr/lib64/python3.4/asyncio/tasks.py", line 242, in _step
result = coro.throw(exc)
File "/usr/lib/python3.4/site-packages/hangups/client.py", line 140, in connect
yield from self._listen_future
File "/usr/lib64/python3.4/asyncio/futures.py", line 358, in iter
yield self # This tells Task to wait for completion.
File "/usr/lib64/python3.4/asyncio/tasks.py", line 297, in _wakeup
future.result()
File "/usr/lib64/python3.4/asyncio/futures.py", line 274, in result
raise self._exception
File "/usr/lib64/python3.4/asyncio/tasks.py", line 240, in _step
result = coro.send(None)
File "/usr/lib/python3.4/site-packages/hangups/channel.py", line 211, in listen
yield from self._longpoll_request()
File "/usr/lib/python3.4/site-packages/hangups/channel.py", line 321, in _longpoll_request
yield from self._on_push_data(chunk)
File "/usr/lib/python3.4/site-packages/hangups/channel.py", line 347, in _on_push_data
yield from self.on_connect.fire()
File "/usr/lib/python3.4/site-packages/hangups/event.py", line 60, in fire
yield from gen
File "/usr/lib/python3.4/site-packages/hangups/event.py", line 58, in fire
gen = observer(*args, **kwargs)
TypeError: _on_connect() missing 1 required positional argument: 'initial_data'

[BlackHallDigital]

Getting the same