自定义GRPO训练数据集加载失败

[Hspix]

Describe the bug
参考grpo下message格式，使用json文件保存数据。文件内容类似，

[
    {
        "messages": [
            {
                "role": "user",
                "content": "......"
            },
            {
                "role": "assistant",
                "content": "......"
            }
        ],
        "其他字段": "其他字段值"
    }
]

Your hardware and system info
ms-swift使用的是modelscope-registry.cn-hangzhou.cr.aliyuncs.com/modelscope-repo/modelscope:ubuntu22.04-cuda12.4.0-py311-torch2.6.0-vllm0.8.3-modelscope1.25.0-swift3.3.0.post1镜像
CUDA：12.8

异常信息
Generating train split: 0 examples [00:00, ? examples/s]Failed to load JSON from file 'message.json' with error <class 'pyarrow.lib.ArrowInvalid'>: JSON parse error: Column() changed from object to array in row 0
Generating train split: 0 examples [00:00, ? examples/s]
[rank0]: Traceback (most recent call last):
[rank0]: File "/usr/local/lib/python3.11/site-packages/datasets/packaged_modules/json/json.py", line 160, in _generate_tables
[rank0]: df = pandas_read_json(f)
[rank0]: ^^^^^^^^^^^^^^^^^^^
[rank0]: File "/usr/local/lib/python3.11/site-packages/datasets/packaged_modules/json/json.py", line 38, in pandas_read_json
[rank0]: return pd.read_json(path_or_buf, **kwargs)
[rank0]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[rank0]: File "/usr/local/lib/python3.11/site-packages/pandas/io/json/_json.py", line 815, in read_json
[rank0]: return json_reader.read()
[rank0]: ^^^^^^^^^^^^^^^^^^
[rank0]: File "/usr/local/lib/python3.11/site-packages/pandas/io/json/_json.py", line 1025, in read
[rank0]: obj = self._get_object_parser(self.data)
[rank0]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[rank0]: File "/usr/local/lib/python3.11/site-packages/pandas/io/json/_json.py", line 1051, in _get_object_parser
[rank0]: obj = FrameParser(json, **kwargs).parse()
[rank0]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[rank0]: File "/usr/local/lib/python3.11/site-packages/pandas/io/json/_json.py", line 1187, in parse
[rank0]: self._parse()
[rank0]: File "/usr/local/lib/python3.11/site-packages/pandas/io/json/_json.py", line 1403, in _parse
[rank0]: ujson_loads(json, precise_float=self.precise_float), dtype=None
[rank0]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[rank0]: ValueError: Expected object or value

[rank0]: During handling of the above exception, another exception occurred:

[rank0]: Traceback (most recent call last):
[rank0]: File "/usr/local/lib/python3.11/site-packages/datasets/builder.py", line 1854, in _prepare_split_single
[rank0]: for _, table in generator:
[rank0]: File "/usr/local/lib/python3.11/site-packages/datasets/packaged_modules/json/json.py", line 163, in _generate_tables
[rank0]: raise e
[rank0]: File "/usr/local/lib/python3.11/site-packages/datasets/packaged_modules/json/json.py", line 137, in _generate_tables
[rank0]: pa_table = paj.read_json(
[rank0]: ^^^^^^^^^^^^^^
[rank0]: File "pyarrow/_json.pyx", line 308, in pyarrow._json.read_json
[rank0]: File "pyarrow/error.pxi", line 155, in pyarrow.lib.pyarrow_internal_check_status
[rank0]: File "pyarrow/error.pxi", line 92, in pyarrow.lib.check_status
[rank0]: pyarrow.lib.ArrowInvalid: JSON parse error: Column() changed from object to array in row 0

[zhangansen]

请问你解决了吗