Search before asking

• I have searched the YOLOv5 issues and discussions and found no similar questions.

Question

It has been used normally for a long time, and today this problem suddenly appeared 。

Traceback (most recent call last):
File "C:\Users\Administrator/.cache\torch\hub\ultralytics_yolov5_master\hubconf.py", line 43, in _create
device = select_device(('0' if torch.cuda.is_available() else 'cpu') if device is None else device)
File "C:\Users\Administrator/.cache\torch\hub\ultralytics_yolov5_master\utils\torch_utils.py", line 74, in select_device
assert nd > int(max(device.split(','))), f'Invalid --device {device} request, valid devices are 0 - {nd - 1}'
AssertionError: Invalid --device 0 request, valid devices are 0 - -1

Additional

none