Hi tutor,
Would like your kind help on C1W4, train_happy_sad_model. I was able to run the whole code inside the Jupyter Notebook and reach > 99.9% accuracy as per assignment requirement, but after clicking submit assignment, below error occured:
Grader Output:
There was a problem grading your submission. Details: ‘NoneType’ object is not iterable
Please advise what had happened. May I get in contact and submit my code for your troubleshooting then. Thank you! Cheers, J1