use warning

serve/gradio_web_server.py

@@ -116,8 +116,8 @@ def add_text(state, text, image, image_process_mode, request: gr.Request):
     # logger.info(f"add_text. ip: {request.client.host}. len: {len(text)}")
 
     if not text or not image:
-        raise gr.Error("Please provide both a prompt and an image.")
-        # return (state, state.to_gradio_chatbot(), "", None) + (no_change_btn,) * 5
+        gr.Warning("Please provide both a prompt and an image.")
+        return (state, state.to_gradio_chatbot(), "", None) + (no_change_btn,) * 5
 
     if len(text) <= 0 and image is None:
         state.skip_next = True