Value Error- Operands could not broadcast- Exercise 8(model)

[Vidisha]

I am not understanding how to solve this Value Error, please someone help.

[albertovilla]

Hi, my guess is that the size of Y_prediction_train and Y_train are different. Can you check in your code what are their shapes?

[Vidisha]

why does it say those two variables are not defined?

[albertovilla]

Hi, you have to check its shape inside the function where those variables are used because those are not global variables. So below the if print_cost: add two prints with the shapes.