Detectron2 Tutorial is not working

[jakee417]

Instructions To Reproduce the 🐛 Bug:

1. Run second cell of Detectron2 Tutorial.ipynb (https://colab.research.google.com/drive/16jcaJoc6bCFAQ96jDe2HwtXj7BMD_-m5)
2. import torch assert torch.__version__.startswith("1.7")

Expected behavior:

I think torch was upgraded to 1.8.0 on Google Colab and now the tutorial isn't working? I am new to Detectron2 so unsure if this worked in the past.

Environment:

Standard Google Colab session

[ShaneMoreno]

It was working earlier today but Google Collab upgraded to torch 1.8.0+cu101

The second cell of Detectron2 Tutorial installs from the torch1.7 wheel. There is no torch1.8 wheel at the link below:
!pip install detectron2 -f https://dl.fbaipublicfiles.com/detectron2/wheels/cu101/torch1.7/index.html

Please update. Thank you.

[sahilchinoy]

I'm running into the same issue; in case it's helpful, running !pip install torch==1.7.1 torchvision==0.8.2 torchaudio==0.7.2 at the top of the notebook seems to be a temporary fix.

[ppwwyyxx]

now upgraded to use torch 1.8