Hello mentor, all the unit-test in my week 1 assignment were passed, while the submission is failed.
I do save the notebook and tried to re-open the assignment, but the error still exists. Would you help me to solve it ? Thanks
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Please follow these steps to refresh your workspace and try again.
If the problem still persists, please click on my name to start a private message. Then, attach your notebook as a .ipynb file. Please note that mentors cannot access your Coursera Jupyter workspace, so sending the notebook in a .ipynb format is important.
Hello mentor, the problem still exists after refreshing. I will send you a message.
Starting from exercise 7, please don’t use non-constants like len(series_valid) for slicing data.
You can read more about it here
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Hello mentor, thanks for your help. The problem is solved.