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java script error message

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With new agent creation I keep getting this error code:

504.3b922b98.chunk.js:1 TypeError: Cannot read properties of null (reading 'connectionStatus$')
at 504.3b922b98.chunk.js:1:43032
at Generator.next (<anonymous>)
at h (503.b7f12dab.chunk.js:2:11692)
at U (503.b7f12dab.chunk.js:2:11478)
at 503.b7f12dab.chunk.js:2:8082
at d (503.b7f12dab.chunk.js:2:4319)
at 503.b7f12dab.chunk.js:2:8062
at 503.b7f12dab.chunk.js:2:11281
at v (503.b7f12dab.chunk.js:2:12244)
at h (503.b7f12dab.chunk.js:2:11752)

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WhatsApp Image 2025-10-09 at 19.37.07.jpeg

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Autonomous agents

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Michael E. Gernaey 53,932 Moderator on at

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Hi @Community member

Can you please be a little more specific. you said

With new agent creation I keep getting this error code:

But what does that mean? you are trying to create it and it fails?

you create it and try to use it and it fails?

What steps are you taking to create the agent

What location are you creating it? Directly in Copilot Studio or in VS Code?

Because the agent looks built, so can you please share your agent, the Tools, etc and configuration.

I will try to reproduce it, if you can share everything :-)

Cheers

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CU10101158-0 4 on at

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I am experiencing the same issue.

When accessing an unauthenticated agent via either the demo website channel, or via web app integration, the portion of the chat window in which the agent would communicate shows javascripterror. Investigating the page using the developer tools produces the TypeError detailed in OPs post

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SS-10090223-0 13 on at

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There is a active know issue for this. 5688654 | Power Platform admin center

As a work around, it is suggested to change the name or icon of the agent and try again.

I changed the name of my agent and it resolved the issue.

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