Error: "messages with role 'tool' must respond to preceding 'tool_calls'" when using ChatTongyi, but works with init_chat_model​

[About-Gleaning]

Description​​
When using the ChatTongyi created LLM in our multi-agent framework (router → react → StateGraph), the React Agent fails at the final step of returning results to the Router Agent. The error is messages with role "tool" must be a response to a preceeding message with "tool_calls". This issue does not manifest when using init_chat_model created LLM.

my code:

config = {
            "configurable": {
                "thread_id": "1"
            }
        }
    async with get_supervisor_agent() as supervisor:
        final_chunk = None
        async for chunk in supervisor.astream({"messages": [{"role": "user", "content": chatRequest.message}]}, config=config, stream_mode="values",debug=True):
            final_chunk = chunk
        if "messages" in final_chunk:
            logger.info(final_chunk["messages"][-1])
            return final_chunk["messages"][-1].content

@asynccontextmanager
async def get_supervisor_agent():
    async with get_agent() as wf_event_agent:
        # llm = init_chat_model(
        #     model="deepseek-chat",
        #     temperature=0.5,
        #     max_retries=1,
        # )
        llm = ChatTongyi(
            model_name="qwen-turbo",
        )

        supervisor = create_supervisor(
            agents=[wf_event_agent],
            model=llm,
            prompt=(root_agent_prompt_forma_v1),
        ).compile(name="supervisor")

        yield supervisor

error:

  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/app/main.py", line 79, in sse_endpoint
    async for chunk in supervisor.astream({"messages": [{"role": "user", "content": chatRequest.message}]}, config=config, stream_mode="values",debug=True):
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langgraph/pregel/__init__.py", line 2759, in astream
    async for _ in runner.atick(
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langgraph/pregel/__init__.py", line 2892, in ainvoke
    async for chunk in self.astream(
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langgraph/pregel/__init__.py", line 2759, in astream
    async for _ in runner.atick(
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langgraph/prebuilt/chat_agent_executor.py", line 763, in acall_model
    response = cast(AIMessage, await model_runnable.ainvoke(state, config))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_core/runnables/base.py", line 3075, in ainvoke
    input = await coro_with_context(part(), context, create_task=True)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_core/runnables/base.py", line 5429, in ainvoke
    return await self.bound.ainvoke(
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_core/language_models/chat_models.py", line 392, in ainvoke
    llm_result = await self.agenerate_prompt(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_core/language_models/chat_models.py", line 958, in agenerate_prompt
    return await self.agenerate(
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_core/language_models/chat_models.py", line 916, in agenerate
    raise exceptions[0]
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_core/language_models/chat_models.py", line 1084, in _agenerate_with_cache
    result = await self._agenerate(
             ^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_community/chat_models/tongyi.py", line 701, in _agenerate
    resp = await asyncio.get_running_loop().run_in_executor(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/miniconda3/lib/python3.12/concurrent/futures/thread.py", line 59, in run
    result = self.fn(*self.args, **self.kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_community/chat_models/tongyi.py", line 540, in completion_with_retry
    return _completion_with_retry(**kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/tenacity/__init__.py", line 338, in wrapped_f
    return copy(f, *args, **kw)
           ^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/tenacity/__init__.py", line 477, in __call__
    do = self.iter(retry_state=retry_state)
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/tenacity/__init__.py", line 378, in iter
    result = action(retry_state)
             ^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/tenacity/__init__.py", line 400, in <lambda>
    self._add_action_func(lambda rs: rs.outcome.result())
                                     ^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/miniconda3/lib/python3.12/concurrent/futures/_base.py", line 449, in result
    return self.__get_result()
           ^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/miniconda3/lib/python3.12/concurrent/futures/_base.py", line 401, in __get_result
    raise self._exception
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/tenacity/__init__.py", line 480, in __call__
    result = fn(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_community/chat_models/tongyi.py", line 538, in _completion_with_retry
    return check_response(resp)
           ^^^^^^^^^^^^^^^^^^^^
  File "/Users/liurui/work_space/code/python3/multi-agent-langgraph/flight-langgraph/.venv/lib/python3.12/site-packages/langchain_community/llms/tongyi.py", line 61, in check_response
    raise ValueError(
ValueError: request_id: 21ecd986-a637-94fe-b4cd-a05d794af98e 
 status_code: 400 
 code: InvalidParameter 
 message: <400> InternalError.Algo.InvalidParameter: messages with role "tool" must be a response to a preceeding message with "tool_calls".
During task with name 'agent' and id 'c7abdd1a-bc92-887e-7373-0efb8affa38f'
During task with name 'supervisor' and id '73d53bc3-2509-7039-44b1-432c5507b63f'

[Candlend]

请问这个问题最后是怎么解决的 @About-Gleaning