Create README.md

README.md

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+---
+license: apache-2.0
+datasets:
+- common-pile/caselaw_access_project
+language:
+- en
+base_model:
+- openai/gpt-oss-120b
+new_version: openai/gpt-oss-20b
+pipeline_tag: fill-mask
+library_name: adapter-transformers
+tags:
+- content
+---
+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:
+
+```bash
+mkdir rag_index
+```
+Then rerun:
+
+```bash
+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:
+
+```python
+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.