C4 W2 A2 input layer shape does not match with expected

Course Q&A Deep Learning Specialization Convolutional Neural Networks
1

Hello Mentors,

I am facing this strange issue, where the first dimension is ‘1’ instead of ‘None’ in all the layers, because of which the test is failing.

Error:

image
image883×282 16.4 KB

My model summary:
image

Expected model summary:

image
image878×234 36.9 KB

Can anyone suggest what to look at?
Thanks,
Suhas

2

The 0th entry stands for batch dimension. You don’t have to specify this. It’s sufficient to make input shape of the 1st layer as the dimensions of a single input image.

3

But the test fails with an assertion!

4

Please click my name and message your notebook as an attachment.

5

I just ran your notebook cells on my coursera jupyter lab environment and everything works. Please confirm.

6

Strange. It seems to work now.
Could have been some intermediate changes I did while debugging.
Sorry for the trouble.

Thanks,
Suhas

7

Thanks for confirming. No worries.