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DBGPT 保存工作流时报错：

ERROR common_exception_handler catch Exception: success=False err_code=‘E0003’ err_msg=“Unable to generate pydantic-core schema for <class ‘dbgpt.core.awel.dag.base.DAG’>. Set arbitrary_types_allowed=True in the model_config to ignore this error or implement __get_pydantic_core_schema__ on your type to fully support it.\n\nIf you got this error by calling handler() within __get_pydantic_core_schema__ then you likely need to call handler.generate_schema(<some type>) since we do not call __get_pydantic_core_schema__ on <some type> otherwise to avoid infinite recursion.\n\nFor further information visit https://errors.pydantic.dev/2.9/u/schema-for-unknown-type” data=None

解决：

pip install fastapi==0.111.0