I also encountered this problem with this assignment: "Permission denied: W4A1/Face_Recognition.ipynb. The file could not be saved automatically, nor could we save the assignment we wrote manually, which resulted in a blank version of the assignment we finally submitted. This seems to be caused by the fact that we don’t have permission to rewrite this file, so I hope to fix it soon. Thanks guys!
As you know several students facing this issue. We already informed the course staff to look into the issue as soon as possible. We are extremely sorry for the inconvenience caused to you because of this error. We understand how frustrating this is but we have no other option but to wait. Sadly, we don’t know the exact time when the problem will be resolved but hope they will resolve it soon.
Your patience will be highly appreciated. Once they resolve the issue, we will inform you.
I am having the same problem with ResNet lab (Course 4 W2A1).
I reckon this problem affects all lab notebooks, so will it be solved for all notebooks simultaneously, or we have to report each lab one by one?
Rename the duplicate with the original filename (basically, just remove the -Copy1 string).
Open this newly renamed notebook.
You should be able to save this and also see the submit button after a minute.
You “might see an error about checkpoints failing. I think that’s okay because that’s related to the permissions of the hidden .ipynb_checkpoints folder. That is not needed for grading as far as I know. The changes should persist in the actual notebook itself even if they see that error. I submitted the notebook and got the expected grade.”
We informed the Coursera staff about it and waiting to hear from them. We are extremely sorry for the inconvenience. Please wait for a while.
Meanwhile, you can try this but it works for some and didn’t work for others.