Update app.py

app.py

@@ -109,7 +109,8 @@ def predict(
     modality_cache, 
 ):
     if image_path is None and audio_path is None and video_path is None and thermal_path is None:
-        return [(input, "图片和音频以及视频为空！请重新上传才能开启对话。")]
+        # return [(input, "图片和音频以及视频为空！请重新上传才能开启对话。")]
+        gr.Error(input, "图片和音频以及视频为空！请重新上传才能开启对话。")
     else:
         print(f'[!] image path: {image_path}\n[!] audio path: {audio_path}\n[!] video path: {video_path}\n[!] thermal path: {thermal_path}')