Error: zero-size array to reduction operation maximum which has no identity

[hduc-le]

I have a problem when run code in Colab. Can you guys please tell me what's happening ? Thanks!

WARNING:tensorflow:From :11: Model.fit_generator (from tensorflow.python.keras.engine.training) is deprecated and will be removed in a future version.
Instructions for updating:
Please use Model.fit, which supports generators.
Found 0 images belonging to 1 classes.
Found 0 images belonging to 1 classes.

ValueError Traceback (most recent call last)
in ()
9 model = unet()
10 model_checkpoint = ModelCheckpoint('unet_membrane.hdf5', monitor='loss',verbose=1, save_best_only=True)
---> 11 model.fit_generator(myGene,steps_per_epoch=2000,epochs=5,callbacks=[model_checkpoint])

10 frames
<array_function internals> in amax(*args, **kwargs)

/usr/local/lib/python3.6/dist-packages/numpy/core/fromnumeric.py in _wrapreduction(obj, ufunc, method, axis, dtype, out, **kwargs)
88 return reduction(axis=axis, out=out, **passkwargs)
89
---> 90 return ufunc.reduce(obj, axis, dtype, out, **passkwargs)
91
92

ValueError: zero-size array to reduction operation maximum which has no identity

[hduc-le]

I solved this. Because I took wrong data path. Sorry