_pickle.UnpicklingError: invalid load key, 'v'.

[zweiPA]

I run the demo code “python demo.py --config-file configs/GTR_TAO_Amodal_Expander_PasteNOcclude.yaml --video-input demo/input_video.mp4 --output demo/output.mp4 --opts MODEL.WEIGHTS models/Amodal_Expander_PnO_45k.pth”, and get such error "_pickle.UnpicklingError: invalid load key, 'v'."

[02/18 16:04:07 detectron2]: Arguments: Namespace(config_file='configs/GTR_TAO_Amodal_Expander_PasteNOcclude.yaml', webcam=None, cpu=False, video_input='demo/input_video.mp4', input=None, output='demo/output.mp4', confidence_threshold=0.5, opts=['MODEL.WEIGHTS', 'models/Amodal_Expander_PnO_45k.pth'])
WARNING [02/18 16:04:07 d2.config.compat]: Config 'configs/GTR_TAO_Amodal_Expander_PasteNOcclude.yaml' has no VERSION. Assuming it to be compatible with latest v2.
[02/18 16:04:10 d2.checkpoint.detection_checkpoint]: [DetectionCheckpointer] Loading from models/Amodal_Expander_PnO_45k.pth ...
[02/18 16:04:10 fvcore.common.checkpoint]: [Checkpointer] Loading from models/Amodal_Expander_PnO_45k.pth ...

It seem like the weight pth file is not align with model. how can i fixed such error

[WesleyHsieh0806]

Please ensure the checkpoint file is downloaded correctly. For example, check the size of the file.
If that does not solve the problem, could you report the entire error message for better clarification?