Update app.py

app.py

@@ -140,7 +140,7 @@ def add_text(history, prompt, file):
         else:
             history = history + [((file.name,), None), (prompt, None)]
             
-    return history, prompt, "", gr.File(value="") #gr.Textbox(value="", interactive=False)
+    return history, prompt, "", gr.File(value=None) #gr.Textbox(value="", interactive=False)
     
 def add_file(history, file, prompt):
     if (prompt == ""):
@@ -579,7 +579,7 @@ with gr.Blocks(css=customCSS, theme=small_and_beautiful_theme) as demo:
 
     # Chatbot
     transfer_input_args = dict(
-        fn=add_text, inputs=[chatbot, user_input, upload], outputs=[chatbot,  user_question, user_input, file_display], show_progress=True
+        fn=add_text, inputs=[chatbot, user_input, upload], outputs=[chatbot, user_question, user_input, file_display], show_progress=True
     )
 
     predict_event1 = user_input.submit(**transfer_input_args, queue=False,).then(**predict_args)