C1, Wk4,assignment 1, Exercise 4 - linear_activation_forward: "local variable 'A' referenced before assignment: "local variable 'A' referenced before assignment"

Hi there.

I have this UnboundLocalError
“local variable ‘A’ referenced before assignment”

I am not referencing A before assignment as far as I know. Please talk me through what this actually means. Nobody else seems to have experienced this, so I am doubtless making a rather basic mistake.

Thank you

You misspelled the variable name A_prev. Dash and underscore are not the same thing. As a result, it interprets that as a subtraction, right? A minus prev. That will not end well.

Apologies for wasting your time. That definitely qualifies as a rather basic mistake.
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