Checklist

• 1. I have searched related issues but cannot get the expected help.
• 2. The bug has not been fixed in the latest version.
• 3. Please note that if the bug-related issue you submitted lacks corresponding environment info and a minimal reproducible demo, it will be challenging for us to reproduce and resolve the issue, reducing the likelihood of receiving feedback.
• 4. If the issue you raised is not a bug but a question, please raise a discussion at https://github.com/sgl-project/SpecForge/discussions/new/choose Otherwise, it will be closed.
• 5. Please use English, otherwise it will be closed.

Describe the bug

[rank0]: ValueError: Cannot use apply_chat_template because this processor does not have a chat template.，我bash examples/run_qwen2.5_7b_vl_eagle3_online.sh这个的时候，出现了这个错误 请问怎么解决呢

Reproduction

bash examples/run_qwen2.5_7b_vl_eagle3_online.sh

Environment

pre-commit
torch==2.9.1
torchaudio==2.9.1
torchvision==0.24.1
transformers==4.57.1
qwen-vl-utils==0.0.11
datasets
setuptools
tqdm
wandb
psutil
numpy
accelerate
pydantic
sglang[all]==0.5.6
openai-harmony
yunchang