A message without a valid session_id was received. This message will be ignored. Make sure to set a proper session id using the `session_request` socketIO event

Rasa Open Source
1

Could someone help me understand why I get this error?

[2021-12-16 17:00:17 +0530] [26080] [ERROR] Exception occurred while handling uri: 'ws://localhost:5005/socket.io/?EIO=4&transport=websocket&sid=oF9CUVi-eZ57FaePAAAA'
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\app.py", line 782, in handle_request
    raise ServerError(
sanic.exceptions.ServerError: Invalid response type None (need HTTPResponse)
[2021-12-16 17:00:17 +0530] [26080] [ERROR] Exception occurred while handling uri: 'ws://localhost:5005/socket.io/?EIO=4&transport=websocket&sid=oF9CUVi-eZ57FaePAAAA'
Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\app.py", line 782, in handle_request
    raise ServerError(
sanic.exceptions.ServerError: Invalid response type None (need HTTPResponse)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\http.py", line 129, in http1
    await self.protocol.request_handler(self.request)
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic_plugin_toolkit\realm.py", line 562, in _handle_request_21_03
    raise cancelled
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic_plugin_toolkit\realm.py", line 550, in _handle_request_21_03
    _ = await real_handle(request)
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\app.py", line 791, in handle_request
    await self.handle_exception(request, e)
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\app.py", line 704, in handle_exception
    await response.send(end_stream=True)
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\response.py", line 122, in send
    await self.stream.send(data, end_stream=end_stream)
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\http.py", line 335, in http1_response_header    
    await self._send(ret)
  File "C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\sanic\server.py", line 268, in send
    raise CancelledError
asyncio.exceptions.CancelledError
C:\ProgramData\Anaconda3\envs\rasa_epaexample\lib\site-packages\rasa\shared\utils\io.py:99: UserWarning: A message without a valid session_id was received. This message will be ignored. Make sure to set a proper session id using the `session_request` socketIO event.
2

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