("Error code: 400 - {'error': {'message': 'Function call is missing a thought_si...
🚨 错误信息
BadRequestError("Error code: 400 - {'error': {'message': 'Function call is missing a
thought_signature in functionCall parts. This is required for tools to work correctly, and
missing thought_signature may lead to degraded model performance. Additional data,
function call default_api:web_search', position 2. Please refer to https://***.dev/**/***/***
for more details. (tid: 2025121002493569746236171884066)', 'type': 'rix_api_error', 'param'.
",'code': None}}")Traceback (most recent call last):
File "/root/lht/bootstrapping-your-agent_batch_gaiavalid/.venv/lib/python3.12/site
packages/langchain_core/language_models/chat_models.py", line 1164, in
agenerate_with cache
result = await self._agenerate
AAAAAAAAAAAAAAAAAAAAAA
File "/root/lht/bootstrapping-your-agent_batch_gaiavalid/.venv/lib/python3.12/site
packages/langchain_openai/chat_models/base.py", line 1456, in _agenerate
raise e
🤖 AI解决方案
代码报错分析
错误翻译
原文：Function call is missing a thought_signature in functionCall parts. This is required for tools to work correctly, and missing thought_signature may lead to degraded model performance.
译文：函数调用在functionCall部分缺少thought_signature。这是工具正常工作所必需的，缺少thought_signature可能导致模型性能下降。原因分析
这是一个API调用错误，根本原因是：- 在调用OpenAI相关服务时，函数调用中缺少必需的
thought_signature参数 - 错误发生在LangChain的OpenAI聊天模型调用过程中
- 具体位置：
langchain_openai/chat_models/base.py第1456行
解决方案
需要在函数调用中添加thought_signature参数：
# 修复后的函数调用示例
function_call = {
"name": "web_search",
"thought_signature": "your_thought_signature_here", # 添加此行
# 其他参数...
}
# 或者在LangChain中配置
from langchain_openai import ChatOpenAI
chat = ChatOpenAI(
model="gpt-4",
# 确保在函数调用中包含thought_signature
)️ 预防措施
---
请确保您的代码符合最新的API规范要求