使用transformers加载decapoda-research/llama-7b-hf的踩坑记录。
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ValueError: Tokenizer class LLaMATokenizer does not exist or is not currently imported. 解决办法: https://github.com/huggingface/transformers/issues/22222 将tokenizer_config.json中LLaMATokenizer改为LlamaTokenizer。 
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RecursionError: maximum recursion depth exceeded while getting the str of an object. 解决办法: https://github.com/huggingface/transformers/issues/22762 使用tokenizer_config.json替换原本的tokenizer_config.json