[Question]: Aws Claude - When message window size > 1 - Can't invoke 'anthropic.claude-v2:1'. Reason: An error occurred (ValidationException)

[martinarisk]

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Describe your problem

Can't invoke 'anthropic.claude-v2:1'. Reason: An error occurred (ValidationException) when calling the Converse operation: A conversation must start with a user message. Try again with a conversation that starts with a user message.

Anyone faced this issue on AWS?

[KevinHuSh]

When/where does that happen?

[martinarisk]

Hello, in Agent section, we have an Agent who uses Generate steps. When we set message window size > 1 in the Generate step editing widget, we get this error on AWS Bedrock. But if we set message window size = 1 then it works, just the agent can respond only short responses. Version of RAGflow is 0.16.0 slim.

[martinarisk]

Solved using window size -1/switch to Claude 3.5. Thanks.