This error occurs when message objects don’t conform to the expected format. TODO: Add JS exampleDocumentation Index
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Troubleshooting
To resolve this error:- Ensure proper format: All inputs to chat models must be an array of LangChain message classes or a supported message-like format
- Verify no unintended stringification or transformation occurs to your messages
- Examine the error’s stack trace and add logging statements to inspect message objects before they’re passed to the model
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