Update app.py

app.py

@@ -130,6 +130,8 @@ def run_with_retry(compose):
                     compose.processors.pop("keypoints")
                 if "mask" in str(e):
                     kwargs.pop("mask", None)
+            except ValueError as e:
+                raise gr.Error(str(e))
             except Exception as e:
                 compose.processors = processors
                 raise e