Week1 Exercise 9 L_model_backward Cache Shape mismatch

Course Q&A Deep Learning Specialization Neural Networks and Deep Learning
1

I m having the following error. The issue seems to because of tuple unpacking but I am not sure why this error is coming … Its been a day since I am stuck in this problem

The error

image
image1299×680 42 KB

The code I have written

{moderator edit - solution code removed}

Kindly Help how to resolve this issue

2

This is a duplicate thread. I already answered on the other one.