Hey guys, I am getting an error that I cannot solve in Ex8.

All functions have passed all tests previously, but when I try to use them in the def(model) function, I get the following error:

ValueError Traceback (most recent call last)

in

1 from public_tests import *

2

----> 3 model_test(model)

~/work/release/W2A2/public_tests.py in model_test(target)

123 y_test = np.array([[0, 1, 0]])

124

→ 125 d = target(X, Y, x_test, y_test, num_iterations=50, learning_rate=0.01)

126

127 assert type(d[‘costs’]) == list, f"Wrong type for d[‘costs’]. {type(d[‘costs’])} != list"

in model(X_train, Y_train, X_test, Y_test, num_iterations, learning_rate, print_cost)

43 b = params[‘b’]

44

—> 45 Y_prediction_test = predict(w,b,X_test)

46 Y_prediction_train = predict(w,b,X_train)

47

in predict(w, b, X)

16 m = X.shape[1]

17 Y_prediction = np.zeros((1, m))

—> 18 w = w.reshape(X.shape[0], 1)

19

20 # Compute vector “A” predicting the probabilities of a cat being present in the picture

ValueError: cannot reshape array of size 2 into shape (4,1)

Anyone know how to solve this?