AppZoo实践时checkpoint_dir找不到

根据https://www.yuque.com/easyx/easynlp/ts4czl 文档上的代码尝试使用文本向量化功能，但是报错找不到checkpoint_dir
请问是什么地方可能有问题呢
File "/home/iu/anaconda3/envs/easyNLP/lib/python3.8/site-packages/pai_easynlp-0.1.2-py3.8.egg/easynlp/modelzoo/configuration_utils.py", line 490, in get_config_dict
raise Exception(f'{pretrained_model_name_or_path} is not a filer or folder.')
Exception: bert-small-uncased is not a filer or folder.

Start with the AppZoo text-vectorization example in the linked documentation and reproduce the failure. Then inspect configuration_utils.py at get_config_dict and trace how the example supplies checkpoint_dir; done means the example resolves bert-small-uncased without raising the reported file-or-folder exception.

Written by the indexing model from the issue text.