Hello, I’m trying to complete the final assignment. The previous step-by-step version of building the components of the L network is working - all tests are passing.

The second assignment just has me use the functions I already built in the step-by-step.

In the second half of the assignment, we build a 4-layer NN (`layers_dims = [12288, 20, 7, 5, 1]`

). That said, I cannot seem to get the parameter values to match the test values (e.g., W1, b1). I’m at a complete loss as to why this might be the case at this late stage of the build.

This is the error:

```
Cost after iteration 0: 0.6931477726958
Cost after first iteration: 0.6931477726958
Cost after iteration 1: 0.6930732421651791
Error: Wrong output for variable W1.
Error: Wrong output for variable b1.
Error: Wrong output for variable W2.
Error: Wrong output for variable b2.
Error: Wrong output for variable W3.
Error: Wrong output for variable b3.
Error: Wrong output for variable 0.
Cost after iteration 1: 0.6930732421651791
Cost after iteration 1: 0.6930732421651791
Cost after iteration 2: 0.6927511004095667
Error: Wrong output for variable W1.
Error: Wrong output for variable b1.
Error: Wrong output for variable W2.
Error: Wrong output for variable b2.
Error: Wrong output for variable W3.
Error: Wrong output for variable b3.
Error: Wrong output for variable 0.
```

Any ideas on what to look for would be great!