[Bug]: Error while use deepseek R1 model

[Lark-Base]

Is there an existing issue for the same bug?

• I have checked the existing issues.

Describe the bug and reproduction steps

BadRequestError: litellm.BadRequestError: DeepseekException - Error code: 400 - {'error': {'message': 'deepseek-reasoner does not support successive user or assistant messages (messages[1] and messages[2] in your input). You should interleave the user/assistant messages in the message sequence.', 'type': 'invalid_request_error', 'param': None, 'code': 'invalid_request_error'}}

OpenHands Installation

Docker command in README

OpenHands Version

0.21

Operating System

None

Logs, Errors, Screenshots, and Additional Context

No response

[Lark-Base]

it works now, add 'AGENT_ENABLE_PROMPT_EXTENSIONS=0'

docker run -it --rm --pull=always
-e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:0.21-nikolaik
-e LOG_ALL_EVENTS=true
-e AGENT_ENABLE_PROMPT_EXTENSIONS=0
-v /var/run/docker.sock:/var/run/docker.sock
-v ~/.openhands-state:/.openhands-state
-p 3000:3000
--add-host host.docker.internal:host-gateway
--name openhands-app
docker.all-hands.dev/all-hands-ai/openhands:0.21

[enyst]

Thank you for the report and follow-up! I think it's something that litellm might fix, they are merging messages for some other LLMs too.

You were using the official API? @Lark-Base

[gdias1992]

Thank you for the report and follow-up! I think it's something that litellm might fix, they are merging messages for some other LLMs too.

You were using the official API? @Lark-Base

I am using the official API and got the same problem.

[j0yk1ll]

@gdias1992 The issue is, that deepseek returns an additional reasoning message i.e. user -> reasoning -> ai -> user -> reasoning -> ai (it could also be just additional field on the AI message, but the theory is still the same)

but the underlying libraries don't support that yet, they still expect user -> ai -> user -> ai

As a result it gives an error. That's why @Lark-Base suggested the AGENT_ENABLE_PROMPT_EXTENSIONS=0