Week 1 Assignment 2 Test failed

Hi, i receive this error and have no idea what it means?
Expected value

[‘MaxPooling2D’, (None, 8, 8, 8), 0, (8, 8), (8, 8), ‘same’]

does not match the input value:

[‘MaxPooling2D’, (None, 8, 8, 8), 0, (8, 8), (8, 8), ‘valid’]

Anybody having an idea?

They are telling you that the parameters you specified for that maxpooling layer are different than what they told you to use. Can you see the difference between the two specifications?