python - Rasa NLU core.py Nonetype の問題

Question

Rasa (誰かが私に彼の名前を教えてくれたことを認識し、その名前をデータベースに保存するために私が書いた単純なモデル) を実行しているときに、実行するたびに Rasa の core.py からスローされる例外に遭遇します。

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Your input ->  My name is Michael
Exception occurred in one of response middleware handlers
Traceback (most recent call last):
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic/app.py", line 958, in handle_request
    request, response
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/spf/framework.py", line 579, in _run_response_middleware
    _response = await _response
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/extension.py", line 267, in unapplied_cors_response_middleware
    set_cors_headers(req, resp, context, res_options)
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/core.py", line 254, in set_cors_headers
    headers_to_set = get_cors_headers(options, req.headers, req.method)
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/core.py", line 174, in get_cors_headers
    origins_to_set = get_cors_origins(options, request_headers.get('Origin'))
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/core.py", line 149, in get_cors_origins
    return sorted([o for o in origins if not probably_regex(o)])
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/core.py", line 149, in <listcomp>
    return sorted([o for o in origins if not probably_regex(o)])
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/core.py", line 273, in probably_regex
    return any((c in maybe_regex for c in common_regex_chars))
  File "/Users/Kami/Documents/rasa/venv/lib/python3.7/site-packages/sanic_cors/core.py", line 273, in <genexpr>
    return any((c in maybe_regex for c in common_regex_chars))
TypeError: argument of type 'NoneType' is not iterable

デバッグで実行してみましたが、この問題に関連するメッセージはないようです。助言がありますか？