fix req

app.py

@@ -6,8 +6,7 @@ import os
 import os
 from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.vectorstores import FAISS
-from langchain.schema import Document
-from langchain.text_splitter import RecursiveCharacterTextSplitter
+
 
 """
 For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference

build_index.py

@@ -5,7 +5,7 @@ from langchain_community.document_loaders import TextLoader, PyPDFLoader, Unstru
 from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.vectorstores import FAISS
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.schema import Document
+from langchain_core.documents import Document
 from langchain_community.docstore.document import Document as LCDocument
 
 DOCS_PATH = "docs"

requirements.txt

@@ -5,4 +5,5 @@ faiss-cpu
 sentence-transformers 
 unstructured 
 pypdf 
-requests
+requests
+langchain-core==0.3.28