在wsl上使用postgres和Rabbitmq运行气流时，我不断收到错误消息，尝试将后端返回设置更改为db而不是Rabbitmq，但是我不确定我还能尝试什么
Traceback (most recent call last):
File "/home/jwolverson/.local/lib/python3.6/site-packages/kombu/utils/__init__.py", line 423, in __call__
return self.__value__
AttributeError: 'ChannelPromise' object has no attribute '__value__'```