Week 1 Assignment 1 problem with the dimensions

Course Q&A Deep Learning Specialization Convolutional Neural Networks
1

I am facing this issue. Getting error as

image
image1256×557 30.7 KB

here is the code snippet

{moderator edit - solution code removed}

2

I think the problem is when you “slice” the W and b values. There are two problems there:

  1. You are overwriting the base values, which will cause problems once you get to the second iteration after you fix the next bug:
  2. Those arrays have 4 dimensions, but you are slicing on the 3rd dimension. That is the “old channel” dimension.
3

Thanks Sir! That worked
But sir would you tell why overwriting base values could raise an error like this?

4

That will cause a different error: on the next iteration, the value will be the previous “sliced” value, not the original value to be “resliced”. But (as I commented) you never get to the second iteration because of the second bug.