None

[GreenTeaHua]

During validation, ObjectDetector.nms_boxes returns None if “nothing was detected“ (line 402 in lib/object_detector.py). This yields a TypeError in ObjectDetector.forward when unrolling the returned objects (line 308 in lib/object_detector.py).
after that, error show in this :

if result.is_none():
return ValueError("heck")