ZeroDivisionError: integer division or modulo by zero

[julianL0veios]

I'm a beginner,and i got those issues,what that means?

gine/training.py", line 429, in data_generator_task
generator_output = next(self._generator)
File "/Users/zhangfei/anaconda3/envs/venv/lib/python3.5/site-packages/keras/preprocessing/image.py", line 662, in next
return self.next(*args, **kwargs)
File "/Users/zhangfei/anaconda3/envs/venv/lib/python3.5/site-packages/keras/preprocessing/image.py", line 708, in next
index_array, current_index, current_batch_size = next(self.index_generator)
File "/Users/zhangfei/anaconda3/envs/venv/lib/python3.5/site-packages/keras/preprocessing/image.py", line 645, in _flow_index
current_index = (self.batch_index * batch_size) % n
ZeroDivisionError: integer division or modulo by zero

Traceback (most recent call last):
File "boss_train.py", line 178, in
model.train(dataset, nb_epoch=10)
File "boss_train.py", line 143, in train
validation_data=(dataset.X_valid, dataset.Y_valid))
File "/Users/zhangfei/anaconda3/envs/venv/lib/python3.5/site-packages/keras/models.py", line 935, in fit_generator
initial_epoch=initial_epoch)
File "/Users/zhangfei/anaconda3/envs/venv/lib/python3.5/site-packages/keras/engine/training.py", line 1600, in fit_generator
callbacks.on_epoch_end(epoch, epoch_logs)
UnboundLocalError: local variable 'epoch_logs' referenced before assignment

[julianL0veios]

its the image problem!