我已经安装了 Rasa，没有任何错误。当我运行 rasa shell 时，服务器会启动，并且会出现聊天机器人提示。当我输入 hi 我收到以下错误：
Bot loaded. Type a message and press enter (use '/stop' to exit):
Your input -> hi
Exception occurred while handling uri: 'http://localhost:5005/webhooks/rest/webhook?stream=true&token='
Traceback (most recent call last):
File "g:\programs\python\python37\lib\site-packages\sanic\app.py", line 946, in handle_request
request, request_name=name
TypeError: _run_request_middleware() got an unexpected keyword argument 'request_name'
Exception occurred in one of response middleware handlers
Traceback (most recent call last):
File "g:\programs\python\python37\lib\site-packages\sanic\app.py", line 1017, in handle_request
request, response, request_name=name
TypeError: _run_response_middleware() got an unexpected keyword argument 'request_name'
2020-01-04 11:29:30 ERROR asyncio - Task exception was never retrieved
future: <Task finished coro=<configure_app.<locals>.run_cmdline_io() done, defined at g:\programs\python\python37\lib\site-packages\rasa\core\run.py:124> exception=ClientResponseError(RequestInfo(url=URL('http://localhost:5005/webhooks/rest/webhook?stream=true&token='), method='POST', headers=<CIMultiDictProxy('Host': 'localhost:5005', 'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'User-Agent': 'Python/3.7 aiohttp/3.6.2', 'Content-Length': '38', 'Content-Type': 'application/json')>, real_url=URL('http://localhost:5005/webhooks/rest/webhook?stream=true&token=')), (), status=500, message='Internal Server Error', headers=<CIMultiDictProxy('Connection': 'keep-alive', 'Keep-Alive': '5', 'Content-Length': '144', 'Content-Type': 'text/html; charset=utf-8')>)>
Traceback (most recent call last):
File "g:\programs\python\python37\lib\site-packages\rasa\core\run.py", line 128, in run_cmdline_io
server_url=constants.DEFAULT_SERVER_FORMAT.format("http", port)
File "g:\programs\python\python37\lib\site-packages\rasa\core\channels\console.py", line 140, in record_messages
async for response in bot_responses:
File "g:\programs\python\python37\lib\site-packages\rasa\core\channels\console.py", line 104, in send_message_receive_stream
async with session.post(url, json=payload, raise_for_status=True) as resp:
File "g:\programs\python\python37\lib\site-packages\aiohttp\client.py", line 1012, in __aenter__
self._resp = await self._coro
File "g:\programs\python\python37\lib\site-packages\aiohttp\client.py", line 588, in _request
resp.raise_for_status()
File "g:\programs\python\python37\lib\site-packages\aiohttp\client_reqrep.py", line 946, in raise_for_status
headers=self.headers)
aiohttp.client_exceptions.ClientResponseError: 500, message='Internal Server Error', url=URL('http://localhost:5005/webhooks/rest/webhook?stream=true&token=')
由于我是 Rasa 的新手，所以我安装 an 没有任何问题，我不确定问题是什么。
请指教。谢谢