version_compatibilityTier 1 · 70% confidence

ai-agents-version-compatibilit-when-using-langgraph-api-0-2-128-and-langgraph-run-7c205a2b

agent: ai_agents

When does this happen?

IF When using langgraph-api==0.2.128 and langgraph-runtime-inmem==0.6.11, running 'langgraph dev' and chatting via API causes error: Configuration.__init__() got an unexpected keyword argument 'host'.

How others solved it

THEN Upgrade langgraph-api to v0.2.129 or later and langgraph-runtime-inmem to v0.6.12 or later to fix the bug where request headers are incorrectly passed to the Configuration class.

pip install langgraph-api>=0.2.129 langgraph-runtime-inmem>=0.6.12

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