huggingface / huggingface/alignment-handbook
jinja2.exceptions.TemplateError: Conversation roles must alternate user/assistant/user/assistant/...
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Description
When running the DPO script, when calling
```python
#####################
# Apply chat template
#####################
raw_datasets = raw_datasets.map(
apply_chat_template,
fn_kwargs={"tokenizer": tokenizer, "task": "dpo"},
num_proc=data_args.preprocessing_num_workers,
remove_columns=column_names,
desc="Formatting comparisons with prompt template",
)
```
I'm getting the error:
```
jinja2.exceptions.TemplateError: Conversation roles must alternate user/assistant/user/assistant/...
```
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