ZhouXiangZhong

> `extra_file_path` in [code1](https://github.com/L-YeZhu/CDCD/blob/667f9c0156e68d6e884a1ad5201ae1928098b02d/synthesis/data/aist_dataset.py#L43) is None. This results in the `__getitem__()` returns NoneType for negative_music in [code2](https://github.com/L-YeZhu/CDCD/blob/667f9c0156e68d6e884a1ad5201ae1928098b02d/synthesis/data/aist_dataset.py#L109). the same issue, i just delete the negative_music in the data dict. but...

@Kai-0515 Hi, I encountered the same problem. How did you find the broken data?

I found out the broken data for me is 004355.npy and M004355.npy, using cal_mean_variance.ipynb provided by HumanMl3d. After removing them, the loss is normally computed.

@qiqiApink The new_joints and new_joints_vecs files in dataset/HumanML3D/