微调发生报错：IndexError: list index out of range

[xianqiangHub]

微调数据集格式是
[
{
"id": "identity_0",
"conversations": [
{
"from": "human",
"value": "你好"
},
{
"from": "assistant",
"value": "您好，我是CodeShell，请问有什么可以帮助您的吗？"
}
]
}
]
使用finetune/run_finetune.sh这个脚本发生下图报错