Kernel dead during programming assignment

In my Programming Assignment: TensorFlow Introduction, the kernel becomes dead when i run the def forward_propagation_test(target, examples) cell, all of my previous work is correct

Does your forward_propagation() function perhaps contain an infinite loop? Or does it output excessive debug data using print() statements?

Thank you @TMosh for your response, i only calculated the Z1,A1,Z2,A2,Z3 using np.dot and relu functions, without any other line of code.

my bad, I used numpy, but I should have used Tensorflow, thought it would be better to add an error message if the student used numpy instead of tensorflow. thank you for your time Tom

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