Hello @NoBlueWithoutYellow
I also see this issue intermittently. (It tends to be when I have left the colab notebook for a while and come back to it, Not sure though. I guess its some sort of session related issue with colab.)
I’ve found deleting my copy of the colab notebook and then starting over fixes the issue.
(Make sure you have a copy of any new code in a safe place. etc)
- So I go to my google drive, and delete the “Copy of …” version of the notebook there.
- Open a new copy from fastai/course-v4 in github
- Save that to my google drive
- Set the notebook settings to GPU
- Click play on the first code cell, and all is fine again.
Hope that helps.