问红色错误未知命令'BZPOPMIN‘

EN

>>> import channels.layers
>>> channel_layer = channels.layers.get_channel_layer()
>>> from asgiref.sync import async_to_sync
>>> async_to_sync(channel_layer.send)('test_channel', {'type': 'hello'})
>>> async_to_sync(channel_layer.receive)('test_channel')

Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\asgiref\sync.py", line 120, in __call__
    return call_result.result()
  File "C:\Users\xyz\Anaconda3\envs\django\lib\concurrent\futures\_base.py", line 425, in result
    return self.__get_result()
  File "C:\Users\xyz\Anaconda3\envs\django\lib\concurrent\futures\_base.py", line 384, in __get_result
    raise self._exception
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\asgiref\sync.py", line 180, in main_wrap
    result = await self.awaitable(*args, **kwargs)
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\channels_redis\core.py", line 485, in receive
    return (await self.receive_single(channel))[1]
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\channels_redis\core.py", line 508, in receive_single
    index, channel_key, timeout=self.brpop_timeout
  File "C:\Users\xyz\Anaconda3\envs\django\lib\site-packages\channels_redis\core.py", line 345, in _brpop_with_clean
    result = await connection.bzpopmin(channel, timeout=timeout)
aioredis.errors.ReplyError: ERR unknown command 'BZPOPMIN'