The community member asked if they can use the Llama Index's query function without LangChain. Another community member responded that Llama Index uses some LLM classes from LangChain, and the error message suggests the need to import and use the ChatOpenAI class for the LLM being used. The original poster mentioned that the error only occurs when using Streamlit, and they don't know how to "use" the ChatOpenAI class in this context. After some discussion, the original poster was able to fix the issue, but the solution was not explicitly provided.
Thanks. It doesn't make sense though that I get the error only when using streamlit 😅 I also imported it and nothing changed. I have to "use" it but I don't know how to use it in this context
