Update app.py

app.py

@@ -31,9 +31,10 @@ if st.button("Ask"):
         st.warning("Please index a repository first")
     else:
         with st.spinner("Thinking..."):
-            result = st.session_state.qa_chain(question)
+            result = st.session_state.qa_chain.invoke(question)
+
             st.markdown("### Answer")
-            st.write(result["result"])
+            st.write(answer)
             st.markdown("### Sources")
             for doc in result["source_documents"]:
                 st.write(doc.metadata["file"])