为什么运行exe提示安装ImportError: 需安装 langchain-openai: pip install langchain-openai,安装成功后还是提示报错 <img width="2214" height="1017" alt="Image" src="https://github.com/user-attachments/assets/17388cfd-fb8e-43ef-ab94-b79ae83c98da" />