No chat template for processor

[dtdo90]

Dear author,

Thank you for the amazing work!!!

I am studying finetuning the Llama 3.2 11B Vision model, but I encounter the following error

ValueError: No chat template is set for this processor. Please either set the chat_template attribute, or provide a chat template as an argument. See https://huggingface.co/docs/transformers/main/en/chat_templating for more information.

Based on ocrvqa_dataset.py, apply_chat_template is a step in processing the data (as in the code snippet below). Very much look forward to your reply!

def tokenize_dialogs(dialogs, images, processor):
    text_prompt = processor.apply_chat_template(dialogs)
    text_prompt = [prompt.replace('<|begin_of_text|>','') for prompt in text_prompt]