Run deepspeed fastchat/train/train_lora.py error. Padding Error

[cyrilakafia]

I get this error when I run deepspeed fastchat/train/train_lora.py

ValueError: Asking to pad but the tokenizer does not have a padding token. Please select a token to use as pad_token (tokenizer.pad_token = tokenizer.eos_token e.g.) or add a new pad token via tokenizer.add_special_tokens({'pad_token': '[PAD]'}).

Upgrading fschat did not help.

[little51]

add: tokenizer.add_special_tokens( {

            "pad_token": "<PAD>",
        }
    )

under this line:tokenizer.pad_token = tokenizer.unk_token