Final classifier all errors are showing zero

[adnansirajrakin]

Do you know why I find the errors as zero for the fine classifier. I get the accuracy for all the other layers normal but
4562/4562 [==============================] - 4s 870us/step - loss: 0.3071 - acc: 0.8889 - val_loss: 2.3408 - val_acc: 0.7306
Fine Classifier 19 Error: 0

also
Single Classifier Error: 0
Coarse Classifier Error: 0
('Evaluating Fine Classifier: ', '0')
('Evaluating Fine Classifier: ', '5')
('Evaluating Fine Classifier: ', '10')
('Evaluating Fine Classifier: ', '15')
Overall Error: 0

[YuanyeChi]

Do you know why? I have the same problem now.