{"record":{"id":"27815eb0915f2039","repo":"langchain-ai/langgraph","slug":"create-react-agent-got-unexpected-keyword-argume","errorCode":null,"errorMessage":"create_react_agent() got unexpected keyword arguments: {deprecated_kwargs}","messagePattern":"create_react_agent\\(\\) got unexpected keyword arguments: (.+?)","errorType":"exception","errorClass":"TypeError","httpStatus":null,"severity":"error","filePath":"libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py","lineNumber":529,"sourceCode":"        )\n        inputs = {\"messages\": [{\"role\": \"user\", \"content\": \"what is the weather in sf\"}]}\n        for chunk in graph.stream(inputs, stream_mode=\"updates\"):\n            print(chunk)\n        ```\n    \"\"\"\n    if (\n        config_schema := deprecated_kwargs.pop(\"config_schema\", MISSING)\n    ) is not MISSING:\n        warnings.warn(\n            \"`config_schema` is deprecated and will be removed. Please use `context_schema` instead.\",\n            category=LangGraphDeprecatedSinceV10,\n        )\n\n        if context_schema is None:\n            context_schema = config_schema\n\n    if len(deprecated_kwargs) > 0:\n        raise TypeError(\n            f\"create_react_agent() got unexpected keyword arguments: {deprecated_kwargs}\"\n        )\n\n    if version not in (\"v1\", \"v2\"):\n        raise ValueError(\n            f\"Invalid version {version}. Supported versions are 'v1' and 'v2'.\"\n        )\n\n    if state_schema is not None:\n        required_keys = {\"messages\", \"remaining_steps\"}\n        if response_format is not None:\n            required_keys.add(\"structured_response\")\n\n        schema_keys = set(get_type_hints(state_schema))\n        if missing_keys := required_keys - set(schema_keys):\n            raise ValueError(f\"Missing required key(s) {missing_keys} in state_schema\")\n\n    if state_schema is None:","sourceCodeStart":511,"sourceCodeEnd":547,"githubUrl":"https://github.com/langchain-ai/langgraph/blob/38031739e551638e373fb553453256c23feeb41f/libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py#L511-L547","documentation":"Error \"create_react_agent() got unexpected keyword arguments: {deprecated_kwargs}\" thrown in langchain-ai/langgraph.","triggerScenarios":"Thrown at libs/prebuilt/langgraph/prebuilt/chat_agent_executor.py:529 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"38031739e551638e373fb553453256c23feeb41f","analyzedAt":"2026-08-26T18:02:49.312Z","schemaVersion":2},"datasetVersion":"2026-08-26T21:11:00.512Z"}