Error during training

[cridav]

Hi, I am interested in your solution, I would appreciate if you have time to answer to some of my questions: I have notices there were some lacking files which I complete from jwyang's implementation. Afterwards I procedeed with the training and I keep obtaining the same error:

ValueError: bg_num_rois = 0 and fg_num_rois = 0, this should not happen!

Any idea why is that happening?