win10 系统，运行core_server.py出现错误

[jalihui]

Traceback (most recent call last):
File "D:\anaconda3\envs\cW\lib\site-packages\websockets\asyncio\server.py", line 353, in conn_handler
await connection.handshake(
File "D:\anaconda3\envs\cW\lib\site-packages\websockets\asyncio\server.py", line 204, in handshake
raise self.protocol.handshake_exc
File "D:\anaconda3\envs\cW\lib\site-packages\websockets\server.py", line 134, in accept
) = self.process_request(request)
File "D:\anaconda3\envs\cW\lib\site-packages\websockets\server.py", line 279, in process_request
protocol_header = self.subprotocol = self.process_subprotocol(headers)
File "D:\anaconda3\envs\cW\lib\site-packages\websockets\server.py", line 419, in process_subprotocol
return self.select_subprotocol(subprotocols)
File "D:\anaconda3\envs\cW\lib\site-packages\websockets\server.py", line 467, in select_subprotocol
raise NegotiationError("missing subprotocol")
websockets.exceptions.NegotiationError: missing subprotocol
opening handshake failed

[BigYty]

我在ubutu22.0上同样出现了这个问题，没有找到解决办法

[RyanShaw-3083]

Downgrade the version of the Websockets package to 13.0 with pip install websockets==13.0.

• 降级 Websockets 包的版本为 13.0 pip install websockets==13.0