MCP Integration unhandled errors in a TaskGroup (1 sub-exception)

Coding with ChatGPT
1

Greetings,

i tried to use the local connectors of ChatGPT desktop
For this a createt an MCP Server on localhost.

The Problem is everytime i try to add the server it gives me the error
”unhandled errors in a TaskGroup (1 sub-exception)”

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From what i see in my logs he is not even trying to connect to that port.

Does anone had simlar issues?

1 Like
2

Update after hours of debugging i think it is a in beta a cloud service and can’t connect to localhost, i never saw a try .. not even to do a SSL handshake.

3

Can someone of OpenAI confirm that there are no Debug Tools? Or that it is curently not possible to use Windows ChatGPT against a Localhost MCP Server? I’m asking because there are rumors you can use it directly on localhost but i can’t confirm this.

4

Hey all, I am also running mcp in localhost and a static ngrok domain. Keep getting the TaskGroup (1 sub-exception) error. Has anyone managed to solve this already?

5

Sorry i currently wasn’t able to resolve it, from my understanding it it does not currently work on localhost adresses. But soon i got an update i will tell you

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6

+1 using ngrok domain https://nebuly-unfervid``…

It was working fine 2 days ago but stoped working yesterday (Oct 16). Here the full response object:

{

“type”:“http_error”,

“code”:424,

“message”:“424: unhandled errors in a TaskGroup (1 sub-exception)”,

“is_error”:true

}
7

I also deployed the mcp to railway (nothing is on localhost) and still get the same error. I guess it’s indeed an error in OpenAI.

1 Like
8

Thank you for the information

9

I was getting this error because I was returning wrong uri in registerResource (where you set the mimeType: "text/html+skybridge")

And because ChatGPT calls resources/list when adding a connector, it failed.
But I agree that the error message could be less cryptic