TypeError: not a string

[neobie]

tokenizer = AutoTokenizer.from_pretrained("IDEA-CCNL/Randeng-Pegasus-238M-Summary-Chinese")

File "/opt/homebrew/lib/python3.8/site-packages/transformers/models/auto/tokenization_auto.py", line 786, in from_pretrained
return tokenizer_class_fast.from_pretrained(pretrained_model_name_or_path, *inputs, **kwargs)
File "/opt/homebrew/lib/python3.8/site-packages/transformers/tokenization_utils_base.py", line 2024, in from_pretrained
return cls._from_pretrained(
File "/opt/homebrew/lib/python3.8/site-packages/transformers/tokenization_utils_base.py", line 2056, in _from_pretrained
slow_tokenizer = (cls.slow_tokenizer_class)._from_pretrained(
File "/opt/homebrew/lib/python3.8/site-packages/transformers/tokenization_utils_base.py", line 2256, in _from_pretrained
tokenizer = cls(*init_inputs, **init_kwargs)
File "/opt/homebrew/lib/python3.8/site-packages/transformers/models/pegasus/tokenization_pegasus.py", line 149, in init
self.sp_model.Load(vocab_file)
File "/opt/homebrew/lib/python3.8/site-packages/sentencepiece/init.py", line 905, in Load
return self.LoadFromFile(model_file)
File "/opt/homebrew/lib/python3.8/site-packages/sentencepiece/init.py", line 310, in LoadFromFile
return _sentencepiece.SentencePieceProcessor_LoadFromFile(self, arg)
TypeError: not a string