Training a model fails

[randomrandom]

Hi, I tried to run the command from the tutorial for model training, but it failed with the following error:

 CUDA_VISIBLE_DEVICES=0 th feedforward_neural_doodle.lua -model_name skip_noise_4 -masks_hdf5 data/starry/gen_doodles.hdf5 -batch_size 4 -num_mask_noise_times 0 -num_noise_channels 0 -learning_rate 1e-1 -half false
/root/torch/install/bin/luajit: /root/torch/install/share/lua/5.1/hdf5/group.lua:312: HDF5Group:read() - no such child 'style_img' for [HDF5Group 33554432 /]
stack traceback:
    [C]: in function 'error'
    /root/torch/install/share/lua/5.1/hdf5/group.lua:312: in function 'read'
    feedforward_neural_doodle.lua:49: in main chunk
    [C]: in function 'dofile'
    /root/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
    [C]: at 0x00406670

any ideas why hdf5 might fail with such error?

[randomrandom]

issue moved here: DmitryUlyanov/online-neural-doodle#4