Error upon start up on faust==1.0.12

[vineetgoel]

I get the following error when running faust 1.0.12:

Traceback (most recent call last):
  File "/home/robinhood/env/lib/python3.6/site-packages/mode/services.py", line 685, in _execute_task
    await task
  File "/home/robinhood/env/lib/python3.6/site-packages/faust/transport/consumer.py", line 292, in _commit_handler
    await self.commit()
  File "/home/robinhood/env/lib/python3.6/site-packages/faust/transport/consumer.py", line 331, in commit
    return await self.force_commit(topics)
  File "/home/robinhood/env/lib/python3.6/site-packages/mode/services.py", line 417, in _and_transition
    return await fun(self, *args, **kwargs)
  File "/home/robinhood/env/lib/python3.6/site-packages/faust/transport/consumer.py", line 345, in force_commit
    did_commit = await self._commit_tps(commit_tps)
  File "/home/robinhood/env/lib/python3.6/site-packages/faust/transport/consumer.py", line 355, in _commit_tps
    await self._handle_attached(commit_offsets)
  File "/home/robinhood/env/lib/python3.6/site-packages/faust/transport/consumer.py", line 389, in _handle_attached
    await producer.wait_many(pending)
  File "/home/robinhood/env/lib/python3.6/site-packages/mode/services.py", line 600, in wait_many
    return await self._wait_one(coro, timeout=timeout)
  File "/home/robinhood/env/lib/python3.6/site-packages/mode/services.py", line 625, in _wait_one
    f.result()  # propagate exceptions
  File "/home/robinhood/python-3.6.3/lib/python3.6/asyncio/tasks.py", line 304, in wait
    raise ValueError('Set of coroutines/Futures is empty.')
ValueError: Set of coroutines/Futures is empty.

The app crashes after this error.