微调clip_cn时报错

直接把CLIP_CN_Tutorial里的微调代码复制到modelscope自带的notebook，但是报错：
Traceback (most recent call last):
File "/opt/conda/lib/python3.10/site-packages/modelscope/utils/registry.py", line 212, in build_from_cfg
return obj_cls(**args)
File "/opt/conda/lib/python3.10/site-packages/modelscope/trainers/multi_modal/clip/clip_trainer.py", line 100, in init
len(train_dataset) / # noqa
ZeroDivisionError: division by zero

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/mnt/workspace/clip_train_entry.py", line 158, in
trainer = build_trainer(
File "/opt/conda/lib/python3.10/site-packages/modelscope/trainers/builder.py", line 39, in build_trainer
return build_from_cfg(cfg, TRAINERS, default_args=default_args)
File "/opt/conda/lib/python3.10/site-packages/modelscope/utils/registry.py", line 215, in build_from_cfg
raise type(e)(f'{obj_cls.name}: {e}')
ZeroDivisionError: CLIPTrainer: division by zero
请问如何解决