Update app.py

app.py

@@ -298,7 +298,12 @@ def bot(history, choice, tts_choice):
         audio_path = audio_future.result()
         yield history, audio_path
 
+# def add_message(history, message):
+#     history.append((message, None))
+#     return history, gr.Textbox(value="", interactive=True, placeholder="Enter message or upload file...", show_label=False)
+
 def add_message(history, message):
+    history = history or []
     history.append((message, None))
     return history, gr.Textbox(value="", interactive=True, placeholder="Enter message or upload file...", show_label=False)
 
@@ -646,7 +651,7 @@ with gr.Blocks(theme='Pijush2023/scikit-learn-pijush') as demo:
             chat_msg = chat_input.submit(add_message, [chatbot, chat_input], [chatbot, chat_input],api_name="voice_query")
             tts_choice = gr.Radio(label="Select TTS System", choices=["Eleven Labs", "Parler-TTS", "MARS5"], value="Eleven Labs")
             retriver_button = gr.Button("Retriver")
-            retriver_button.click(fn=add_message, inputs=[chat_input, chatbot], outputs=[chatbot, chat_input]).then(
+            retriver_button.click(fn=add_message, inputs=[chatbot, chat_input], outputs=[chatbot, chat_input]).then(
             fn=bot, inputs=[chatbot, choice, tts_choice], outputs=[chatbot, gr.Audio(interactive=False, autoplay=True)]
             )