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Unexpected keyword argument 'progress_callback'" #175

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bradenmacdonald opened this issue May 16, 2025 · 1 comment
Open

Unexpected keyword argument 'progress_callback'" #175

bradenmacdonald opened this issue May 16, 2025 · 1 comment
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fixed - release Issue has been fixed, and has been released

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@bradenmacdonald
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fast-agent doesn't seem to work with the recently-released mcp==1.9.0. Because of this change (I think), now running an agent gives this error:

MCPAgentClientSession.send_request() got an unexpected keyword argument 'progress_callback'

I believe this code needs to be updated to accept the new parameter.

For now I downgraded to mcp==1.8.0 and it works around the problem.
@evalstate evalstate added the fixed - release Issue has been fixed, and has been released label May 17, 2025
@evalstate
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Thanks - I did a quick patch release to 0.2.26 which pinned 1.8.0 - will upgrade properly in the next release (and pin @ 1.9.0!)

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@bradenmacdonald @evalstate