[BUG] 简洁ERROR: RemoteProtocolError: API通信遇到错误：peer closed connection without sending complete message body (incomplete chunked read)阐述问题 / Concise description of the issue

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一键运行之后 使用LLM对话都没有问题 但是使用知识库问答 和文件对话时都会报一个“创建History对象时content属性的值为None而引起的错误。根据错误信息，似乎content属性不允许为None。可能需要检查代码中创建History对象的地方，并确保在创建对象时提供了有效的content值，下面是具体的报错信息。具体应该修改哪些地方的内容
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/fastapi/applications.py", line 1054, in call
| await super().call(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/applications.py", line 119, in call
| await self.middleware_stack(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/middleware/errors.py", line 186, in call
| raise exc
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/middleware/errors.py", line 164, in call
| await self.app(scope, receive, _send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/middleware/exceptions.py", line 62, in call
| await wrap_app_handling_exceptions(self.app, conn)(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/_exception_handler.py", line 64, in wrapped_app
| raise exc
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
| await app(scope, receive, sender)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/routing.py", line 762, in call
| await self.middleware_stack(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/routing.py", line 782, in app
| await route.handle(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/routing.py", line 297, in handle
| await self.app(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/routing.py", line 77, in app
| await wrap_app_handling_exceptions(app, request)(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/_exception_handler.py", line 64, in wrapped_app
| raise exc
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
| await app(scope, receive, sender)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/starlette/routing.py", line 75, in app
| await response(scope, receive, send)
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/sse_starlette/sse.py", line 255, in call
| async with anyio.create_task_group() as task_group:
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/anyio/_backends/_asyncio.py", line 678, in aexit
| raise BaseExceptionGroup(
| ExceptionGroup: unhandled errors in a TaskGroup (1 sub-exception)
+-+---------------- 1 ----------------
| Traceback (most recent call last):
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/sse_starlette/sse.py", line 258, in wrap
| await func()
| File "/home/guanjr/miniconda3/envs/KQAP/lib/python3.11/site-packages/sse_starlette/sse.py", line 245, in stream_response
| async for data in self.body_iterator:
| File "/home/guanjr/Langchain-Chatchat-master_2024_2/server/chat/file_chat.py", line 138, in knowledge_base_chat_iterator
| input_msg = History(role="user", content=prompt_template).to_msg_template(False)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
| File "pydantic/main.py", line 341, in pydantic.main.BaseModel.init
| pydantic.error_wrappers.ValidationError: 1 validation error for History
| content
| none is not an allowed value (type=type_error.none.not_allowed)

[dosubot]

To address the ValidationError for the History object with content being None, ensure prompt_template is not None before creating the History object in the knowledge_base_chat_iterator function within file_chat.py. Here's a quick fix:

if prompt_template is not None:
    input_msg = History(role="user", content=prompt_template).to_msg_template(False)
else:
    # Handle None case, perhaps set a default value or raise an error
    input_msg = History(role="user", content="default value").to_msg_template(False)

For the RemoteProtocolError, it's crucial to ensure network requests are correctly formatted and to handle exceptions properly. Wrap network operations in a try-except block to catch and handle RemoteProtocolError:

try:
    # Replace with your network operation
    response = some_network_operation()
except RemoteProtocolError as e:
    # Log the error and respond appropriately
    logger.error(f"Remote protocol error encountered: {e}")
    raise HTTPException(status_code=500, detail="A remote protocol error occurred")

Implementing these solutions should help resolve the issues you're encountering with the knowledge base Q&A and file dialogue features.

Sources

• server/chat/chat.py
• server/chat/utils.py
• server/chat/file_chat.py

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这是没输入内容吧