Week 4 Programming Assignment - backprop issue

I don’t get dA0 from L_model_backward()

Can you you share the screenshot of the full error log?

KeyError in Python is raised when you attempt to access a key that is not in a dictionary.

Check here again if there needs some correct based on instructions

The for loop starts at 1 because layer 0 is the input

caches – list of caches containing:
every cache of linear_activation_forward() (there are L of them, indexed from 0 to L-1)


Thanks for the hint, it was an indexing error. Got resolved.