Update app.py

app.py

@@ -111,7 +111,8 @@ with gr.Blocks() as demo:
             repo_name  = gr.Textbox(label="New App (repo) name")
             start_btn  = gr.Button("Start a new app")
         with gr.Column(scale=3):
-            chatbot = gr.Chatbot()
+            # Specify Chatbot type to avoid schema errors
+            chatbot = gr.Chatbot(type="messages")
             state   = gr.State(value=None)
             logs_display   = gr.Textbox(label="Operation Logs", interactive=False, lines=8)
             preview_iframe = gr.HTML("<p>No deployed app yet.</p>")