Kaggle cnn_learner issue

Part 1 (2019)
1

I am getting an error:

<urlopen error [Errno -3] Temporary failure in name resolution>

for using:

!mkdir -p /tmp/.torch/models
!cp /kaggle/input/resnet50/resnet50.pth /tmp/.torch/models/resnet50-19c8e357.pth
learn = cnn_learner(data1, models.resnet50, metrics=error_rate)

I have also added the resnet50 for PyTorch in my kaggle/input folder

Any help would be appreciated!