fix to handle error: ValueError: Returned dictionary included some keys as Components. Either all keys must be Components to assign Component values, or return a List of values to assign output values in order.

app.py

@@ -197,19 +197,19 @@ with gr.Blocks(title="PDF Chatbot") as demo:
         try:
             await process_pdf(file, new_state)
             gr.Info("PDF processed successfully! You can now chat with it.")
-            return {
-                chat_row: gr.update(visible=True),
-                file_upload_input: gr.update(interactive=False),
-                state: new_state,
-            }
+            return [
+                gr.update(visible=True),
+                gr.update(interactive=False),
+                new_state,
+            ]
         except gr.Error as e:
             # Display the Gradio error message to the user
             gr.Error(str(e))
-            return {
-                chat_row: gr.update(visible=False),
-                file_upload_input: gr.update(interactive=True),
-                state: state, # Return original state on failure
-            }
+            return [
+                gr.update(visible=False),
+                gr.update(interactive=True),
+                state, # Return original state on failure
+            ]
 
     file_upload_input.upload(
         fn=process_and_show_chat,