Conversation roles must alternate user/assistant/user/assistant/

[nguptaHQ]

I checked. They are alternate

File "/root/Medusa/medusa/train/train_legacy.py", line 183, in preprocess
prompt = tokenizer.apply_chat_template(conversation, tokenize=False)
File "/root/miniconda3/envs/fschat/lib/python3.9/site-packages/transformers/tokenization_utils_base.py", line 1743, in apply_chat_template
rendered = compiled_template.render(
File "/root/miniconda3/envs/fschat/lib/python3.9/site-packages/jinja2/environment.py", line 1304, in render
self.environment.handle_exception()
File "/root/miniconda3/envs/fschat/lib/python3.9/site-packages/jinja2/environment.py", line 939, in handle_exception
raise rewrite_traceback_stack(source=source)
File "", line 1, in top-level template code
File "/root/miniconda3/envs/fschat/lib/python3.9/site-packages/jinja2/sandbox.py", line 394, in call
return __context.call(__obj, *args, **kwargs)
File "/root/miniconda3/envs/fschat/lib/python3.9/site-packages/transformers/tokenization_utils_base.py", line 1771, in raise_exception
raise TemplateError(message)
jinja2.exceptions.TemplateError: Conversation roles must alternate user/assistant/user/assistant/...

Please help me with the resolution