Course 4 Week 3 Car detection with YOLO grade error

I just finished the assignment and all functions passed the tests while I was working in the Jupyter notebook. However, after submitting the assignment, the grader output showed an error for the 4th function. This is the graders output:

Code Cell UNQ_C1: Function ‘yolo_filter_boxes’ is correct.
Code Cell UNQ_C2: Function ‘iou’ is correct.
Code Cell UNQ_C3: Function ‘yolo_non_max_suppression’ is correct.
Code Cell UNQ_C4: Unexpected error (TypeError(‘cannot unpack non-iterable function object’)) occurred during function check. We expected function yolo_eval to return yolo_eval test 1 failed. Please check that this function is defined properly.
If you see many functions being marked as incorrect, try to trace back your steps & identify if there is an incorrect function that is being used in other steps.
This dependency may be the cause of the errors.

I checked if I had any errors in the code but everything seems fine, what might be the problem?

I submitted the assignment again the next day and everything’s fine now. I believe the problem was that I might have submitted the notebook before it saved all changes.


It’s great to hear that you were able to submit successfully! Thanks for confirming.