Issue with PyTorch version and LazyInstanceNorm2d

[Beb007]

Hello,

Fantastic work !
I faced an issue with my latest run:

Traceback (most recent call last):
  File "train.py", line 667, in <module>
    main(opt)
  File "train.py", line 562, in main
    train(opt.hyp, opt, device, callbacks)
  File "train.py", line 154, in train
    bn = nn.BatchNorm2d, nn.LazyBatchNorm2d, nn.GroupNorm, nn.InstanceNorm2d, nn.LazyInstanceNorm2d, nn.LayerNorm
AttributeError: module 'torch.nn' has no attribute 'LazyInstanceNorm2d'

LazyInstanceNorm2d seems to be included from torch version 1.10, and not present in 1.9.1 usually used from Kaggle

I tried pip install torch==1.11 (latest) but got packages conflicts
With torch=1.10, no conficts, but faced another issue with protobuf.
My first though was to suggest a change in requirements, but, as theses packages conflicts can become really awkward... I leave it for now and just report it...

Best regards

PS: my bad, I should had put this in issue section

[Beb007]

Answered & Resolved by #7392
Thanks!