Update app.py

app.py

@@ -28,7 +28,12 @@ class BasicAgent:
         # Wrap the question in a HumanMessage from langchain_core
         messages = [HumanMessage(content=question)]
         print(f"messages: {messages}")
-        messages = self.graph.invoke({"messages": messages})
+        try:
+            messages = self.graph.invoke({"messages": messages})
+            print(f"Returned from graph.invoke(): {messages}")
+        except Exception as e:
+            print(f"Exception during graph.invoke: {e}")
+            raise
         print(f"messages: {messages}")
         print(f"messages['messages']: {messages['messages']}")
         answer = messages['messages'][-1].content