Update app.py

app.py

@@ -113,6 +113,15 @@ def prepare_once():
 
 prepare_once()
 
+# ---- Friendly dependency check (so the error is clear) -----------------------
+try:
+    import audiotools  # noqa: F401
+except Exception as e:
+    raise RuntimeError(
+        "Missing dependency 'audiotools'. "
+        "Add 'audiotools>=0.7.2' to requirements.txt and restart the Space."
+    ) from e
+
 # Now safe to import their internals
 from hunyuanvideo_foley.utils.model_utils import load_model, denoise_process
 from hunyuanvideo_foley.utils.feature_utils import feature_process