latest version

app.py

@@ -14,6 +14,7 @@ from langchain.document_loaders import TextLoader, UnstructuredEPubLoader
 from langchain.callbacks.manager import CallbackManager
 from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
 import gradio as gr
+from pypandoc.pandoc_download import download_pandoc
 
 # example questions
 question_examples = [
@@ -41,6 +42,7 @@ llm = HuggingFaceHub(
 
 embeddings = HuggingFaceEmbeddings()
 callback_manager = CallbackManager([StreamingStdOutCallbackHandler()])
+download_pandoc()
 
 def upload_file(File):
   if File.name.endswith(".txt"):