Pytorch model failing to load

Hello All, I am trying to deploy my trained pytorch model and seeing an error trace as below

failed to load model ‘’: PytorchStreamReader failed locating file constants.pkl: file not found
Exception raised from valid at /opt/pytorch/pytorch/caffe2/serialize/

Can someone help with the above error whether something is wrong with my model training or something else ?

Your file might be corrupt and I guess torch.load fails to load all internal objects. Could you check if re-saving the model could help?