ws#' was not upgraded to websocket #40

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opened 2026-03-23 20:30:50 +00:00 by mirror · 1 comment

mirror commented

2026-03-23 20:30:50 +00:00

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Originally created by @xurenda on GitHub (Nov 22, 2021).
Original GitHub issue: https://github.com/AppFlowy-IO/AppFlowy/issues/71

When I run front-end and back-end projects.
In the front-end project console output:

Exception attempting to connect to the VM Service: WebSocketException: Connection to 'http://127.0.0.1:50489/D9voQYkoTug=/ws#' was not upgraded to websocket
This was attempt #1200. Will retry in 0:00:01.600000.

Back-end project listening to port 8000, to start a front-end project, you need to specify the server port:

flutter run --host-vmservice-port 8000

But it seems that there is a problem with the WebSocket port.
What can I do to make WebSocket work properly? Adding configuration or forgetting to start some services? Thank you for your help!

Originally created by @xurenda on GitHub (Nov 22, 2021). Original GitHub issue: https://github.com/AppFlowy-IO/AppFlowy/issues/71 When I run front-end and back-end projects. In the front-end project console output: ``` Exception attempting to connect to the VM Service: WebSocketException: Connection to 'http://127.0.0.1:50489/D9voQYkoTug=/ws#' was not upgraded to websocket This was attempt #1200. Will retry in 0:00:01.600000. ``` Back-end project listening to port 8000, to start a front-end project, you need to specify the server port: ``` flutter run --host-vmservice-port 8000 ``` But it seems that there is a problem with the WebSocket port. What can I do to make WebSocket work properly? Adding configuration or forgetting to start some services? Thank you for your help!

mirror

2026-03-23 20:30:50 +00:00

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mirror commented

2026-03-23 20:30:50 +00:00

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@appflowy commented on GitHub (Nov 22, 2021):

The frontend with the backend is not ready yet. I'll make a docker image for later use.

@appflowy commented on GitHub (Nov 22, 2021): The frontend with the backend is not ready yet. I'll make a docker image for later use.