ankitkushwaha90/RAG_Project

That error is happening because your script is trying to save the FAISS index into a folder called rag_index/, but that folder doesn’t exist yet.

FAISS doesn’t auto-create directories, so you have to make sure the folder exists before writing.

Quick fix

In your project folder (RAG_practicle), run:

mkdir rag_index

Then rerun:

python rag.py --build-corpus sample_docs

Permanent fix in code

Inside rag.py, right before saving the index in self.index.fit(...) or before faiss.write_index(...), add:

import os
os.makedirs("rag_index", exist_ok=True)

That way the script will automatically create the folder if it doesn’t exist.

Do you want me to update your rag.py so it auto-creates rag_index/ and avoids this crash forever? That would make it more robust.