Update app.py

app.py

@@ -16,7 +16,8 @@ def get_training_info(audio_file):
     """Determine training parameters based on the duration of the audio file."""
     try:
         if not audio_file:
-            return "Please provide an audio file."
+            raise gr.Error("Please provide an audio file :(")
+            return "."
         
         duration = get_audio_duration(audio_file)
         with wave.open(audio_file, 'rb') as audio: