Traceback (most recent call last):


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/agents/agent.py", line 527, in _execute_task

await coro


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/api/test.py", line 14, in build_item_index

async for item in stream:


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/streams.py", line 747, in __aiter__

channel_value = await chan_slow_get()


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/channels.py", line 301, in __anext__

return await self.queue.get()


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/mode/utils/queues.py", line 125, in get

return await super().get()


 "/usr/lib64/python3.6/asyncio/queues.py", line 167, in get

yield from getter


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/transport/conductor.py", line 80, in on_message

event = await chan.decode(message, propagate=True)


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/topics.py", line 161, in decode

value_type, message.value, serializer=value_serializer)


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/serializers/registry.py", line 104, in loads_value

sys.exc_info()[2]) from exc


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/serializers/registry.py", line 99, in loads_value

return cast(V, self._prepare_payload(typ, payload))


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/serializers/registry.py", line 122, in _prepare_payload

return model.from_data(value, preferred_type=model)


 "/home/michael/arbeit/digitalernachschub/ameto/ameto/api/venv/lib64/python3.6/site-packages/faust/models/record.py", line 280, in from_data

return (self_cls or cls)(**data, __strict__=False)
faust.exceptions.ValueDecodeError: type object argument after ** must be a mapping, not NoneType

Traceback (most recent call last):


 "/home/jingchengwang/anaconda3/lib/python3.5/site-packages/pip/_internal/cli/base_command.py", line 153, in _main

status = self.run(options, args)


 "/home/jingchengwang/anaconda3/lib/python3.5/site-packages/pip/_internal/commands/install.py", line 455, in run

use_user_site=options.use_user_site,


 "/home/jingchengwang/anaconda3/lib/python3.5/site-packages/pip/_internal/req/__init__.py", line 62, in install_given_reqs

**kwargs


 "/home/jingchengwang/anaconda3/lib/python3.5/site-packages/pip/_internal/req/req_install.py", line 888, in install

cwd=self.unpacked_source_directory,


 "/home/jingchengwang/anaconda3/lib/python3.5/site-packages/pip/_internal/utils/subprocess.py", line 275, in runner

spinner=spinner,


 "/home/jingchengwang/anaconda3/lib/python3.5/site-packages/pip/_internal/utils/subprocess.py", line 242, in call_subprocess

raise InstallationError(exc_msg)
pip._internal.exceptions.InstallationError: Command errored out with exit status 1: /home/jingchengwang/anaconda3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-30_mpovs/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-30_mpovs/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' --cpp_ext --cuda_ext install --record /tmp/pip-record-rn3tyl3l/install-record.txt --single-version-externally-managed --compile Check the logs for full command output.
