Traceback (most recent call last):


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/agents/agent.py", line 601, in _execute_task

await coro


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/agents/agent.py", line 638, in _slurp

await self._delegate_to_sinks(value)


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/agents/agent.py", line 645, in _delegate_to_sinks

await cast(TopicT, sink).send(value=value)


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/topics.py", line 184, in send

callback=callback,


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/channels.py", line 218, in _send_now

key_serializer, value_serializer, callback))


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/topics.py", line 373, in publish_message

headers=headers,


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/transport/consumer.py", line 262, in send

p: int = self.consumer.key_partition(topic, key, partition)


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/transport/consumer.py", line 1191, in key_partition

return self._thread.key_partition(topic, key, partition=partition)


 "/home/daniel/.virtualenvs/tributum-accounts/lib/python3.6/site-packages/faust/transport/drivers/aiokafka.py", line 468, in key_partition

all_partitions = list(metadata.partitions_for_topic(topic))
TypeError: 'NoneType' object is not iterable

Traceback (most recent call last):


 "/home/gb/Documents/Research/Projects/dvc/dvc/repo/experiments/__init__.py", line 723, in _workspace_repro

exec_result = BaseExecutor.reproduce(


 "/home/gb/Documents/Research/Projects/dvc/dvc/repo/experiments/executor/base.py", line 268, in reproduce

dvc_checkout(dvc, force=True, quiet=True, allow_missing=True)


 "/home/gb/Documents/Research/Projects/dvc/dvc/repo/__init__.py", line 49, in wrapper

return f(repo, *args, **kwargs)


 "/home/gb/Documents/Research/Projects/dvc/dvc/repo/checkout.py", line 104, in checkout

total = get_all_files_numbers(pairs)


 "/home/gb/Documents/Research/Projects/dvc/dvc/repo/checkout.py", line 41, in get_all_files_numbers

return sum(


 "/home/gb/Documents/Research/Projects/dvc/dvc/repo/checkout.py", line 42, in <genexpr>

stage.get_all_files_number(filter_info) for stage, filter_info in pairs


 "/home/gb/Documents/Research/Projects/dvc/dvc/stage/__init__.py", line 611, in get_all_files_number

return sum(
TypeError: unsupported operand type(s) for +: 'int' and 'NoneType'
