KeyError: 'CameraMessage'

[yanyide123]

error message：
connection handler failed
Traceback (most recent call last):
File "D:\miniconda3\envs\nerfstudio\lib\site-packages\websockets\legacy\server.py", line 236, in handler
await self.ws_handler(self)
File "D:\miniconda3\envs\nerfstudio\lib\site-packages\viser\infra_infra.py", line 379, in serve
await asyncio.gather(
File "D:\miniconda3\envs\nerfstudio\lib\site-packages\viser\infra_infra.py", line 533, in _message_consumer
message = message_class.deserialize(raw)
File "D:\miniconda3\envs\nerfstudio\lib\site-packages\viser\infra_messages.py", line 149, in deserialize
message_type = cls._subclass_from_type_string()[cast(str, mapping.pop("type"))]
KeyError: 'CameraMessage'
Printed the mapping, mapping result.
mapping {'type': 'CameraMessage', 'aspect': 1.7392638036809815, 'render_aspect': 1.7777777777777777, 'fov': 50, 'matrix': (0.7071067811865476, 0.7071067
811865475, 0, 0, -0.20507577810739902, 0.20507577810739896, 0.9570202978345286, 0, 0.6767155423319645, -0.6767155423319646, 0.29002094671369916, 0, 0.69
99999999999997, -0.6999999999999998, 0.29999999999999993, 1), 'camera_type': 'perspective', 'is_moving': False, 'timestamp': 1736837390932.0}

The source of the error is：
Startup command：ns-train nerfacto --data data/nerfstudio/poster --viewer.websocket-port 9000
Then access through： https://viewer.nerf.studio/?websocket_url=ws://localhost:9000
The error occurs as soon as the connection is made.

[brentyi]

Hi, can you check if #2972 answers your question?

[yanyide123]

I have tried it, but it didn't solve my problem.

[brentyi]

Do you still get the CameraMessage KeyError when you follow #2972 (comment)?

[engrmusawarali71]

Hello, you should run on local host, if you want to run your code on legacy visualizer then you should add the line --vis viewer_legacy. Write the command ns-train nerfacto --data data/nerfstudio/poster --viewer.websocket-port 9000 --vis viewer_legacy

[yanyide123]

Hello, you should run on local host, if you want to run your code on legacy visualizer then you should add the line --vis viewer_legacy. Write the command ns-train nerfacto --data data/nerfstudio/poster --viewer.websocket-port 9000 --vis viewer_legacy

Thank you, your solution solved my problem.

[yanyide123]

Do you still get the CameraMessage KeyError when you follow #2972 (comment)?

ns-train nerfacto --data data/nerfstudio/poster --viewer.websocket-port 9000 --vis viewer_legacy

Thank you. The above command resolved my issue on Windows 10.