Update app.py

app.py

@@ -98,9 +98,9 @@ if st.button("Get Answer") or (user_question and uploaded_pdf):
 
             # Embeddings
             embedding_model = SentenceTransformer('all-mpnet-base-v2')
-            all_embeddings = embedding_model.encode(text_chunks) if text_chunks else []
+            all_embeddings = embedding_model.encode(text_chunks) if text_chunks else None
 
-            if not all_embeddings:
+            if all_embeddings is None or len(all_embeddings) == 0:
                 st.error("No text chunks found to create embeddings.")
             else:
                 # Create FAISS index