TypeError: Cannot read properties of undefined (reading 'find') for MESSAGES_SNAPSHOT

[danciudev]

TanStack AI version

"@tanstack/ai": 0.26.1 "@tanstack/ai-client": 0.16.1 "@tanstack/ai-react": 0.15.1

Framework/Library version

"@tanstack/ai": 0.26.1 "@tanstack/ai-client": 0.16.1 "@tanstack/ai-react": 0.15.1

Describe the bug and the steps to reproduce it

An exception occurs when I receive a message of type MESSAGES_SNAPSHOT

data: {"type":"TEXT_MESSAGE_END","messageId":"30c8bcf9-8691-4a08-ac7e-05553cc32fd1"}

data: {"type":"MESSAGES_SNAPSHOT","messages":[{"id":"msg-1780386991166-22zrq","role":"user","content":"...","content":"Could you clarify what you want changed in this DataApp?"}]}

data: {"type":"RUN_FINISHED","threadId":"resp_015228a4252ea0b2006a1e8cb0728481939ad10b5ff635cb0b","runId":"resp_015228a4252ea0b2006a1e8cb0728481939ad10b5ff635cb0b"}

Fail with this error

Your Minimal, Reproducible Example - (Sandbox Highly Recommended)

Screenshots or Videos (Optional)

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