error while training.

[BlcaKHat]

I got this error .

[plabadille]

Hello,

it seem your validation_sample_count is undefined (e.g None in python). This mean you probably have a format issue with your hdf5 file. Have you generate your hdf5 file using my script serialize_dataset_to_hdf5.py ?

Note h5 weights file and a serialized dataset in hdf5 ARE NOT the same things

[BlcaKHat]

yeah, I generated using your script. and text file was similar to what you mentioned.

[plabadille]

I can see on your screenshot /Documents/image_classifier/serialized_datasets/helmet
Your serialized dataset filename should be : helmet.hdf5 (it seem you named it helmet)
Then you should call the script like this : python train_with_hdf5.py helmet

If this is not the issue :
Are you using the last version of the scripts on the repository ? I have
done fixes since the release

Otherwise :

• check you're using the rigth versions (
  https://github.com/plabadille/image_classifier#packages-version-used) i
  didn't try it with newer version of Tensorflow/Keras.
• provide me all the constants you defined at the begining of the scripts
• make sure your hdf5 file path is correct and the file is loaded