hf llm

backend.py

@@ -14,7 +14,8 @@ from typing import Iterator, List, Any
 from llama_index.core.chat_engine import CondensePlusContextChatEngine
 from llama_index.core.llms import ChatMessage, MessageRole , CompletionResponse
 from IPython.display import Markdown, display
-from langchain.embeddings.huggingface import HuggingFaceEmbeddings
+from langchain_huggingface import HuggingFaceEmbeddings
+
 #from llama_index import LangchainEmbedding, ServiceContext
 from llama_index.embeddings.huggingface import HuggingFaceEmbedding
 from llama_index.llms.huggingface import HuggingFaceInferenceAPI, HuggingFaceLLM

requirements.txt

@@ -10,7 +10,7 @@ llama-index-readers-web
 llama-index-readers-file
 llama-index-embeddings-langchain
 pypdf
-langchain
+langchain>=0.2.3
 langchain-community
 #langchain-huggingface
 bitsandbytes