hongquant17

You can check for solution here #334

I met the same issue. It seems that in **part_anns.json**, all `file_name` are in .bmp whereas the data is in .jpg. I printed out the len of `valid_part_anns` and `self.part_anns`...

and the **root_dir** `is parts_bmp_filter_done` so it kind of makes sense, I wonder whether there was an additional **root_dir** for .jpg data

@Binyr Update: I downloaded the `parts_bmp_filter_done.zip`, what is the structure of those folders of .bmp, where should I place them?