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The dataset generation failed because of a cast error
Error code: DatasetGenerationCastError
Exception: DatasetGenerationCastError
Message: An error occurred while generating the dataset
All the data files must have the same columns, but at some point there are 3 new columns ({'type', 'timestamp', 'positions'}) and 6 missing columns ({'__index_level_1__', '# SO-101 multi-robot real-data SysID CSV handoff', '__index_level_0__', '__index_level_3__', '__index_level_2__', '__index_level_4__'}).
This happened while the csv dataset builder was generating data using
zip://so101_multi_robot_sysid_20260818/legacy_sysid_csv/Lerobot SysID/so101_sysid_data/no_camera/train_42motion/control.csv::hf://datasets/VigneshBhavan/AB-testing@3cac66bc2efa7c4b41a0b7d533c3fc1864955663/so101_multi_robot_sysid_20260818.zip, ['hf://datasets/VigneshBhavan/AB-testing@3cac66bc2efa7c4b41a0b7d533c3fc1864955663/so101_multi_robot_sysid_20260818.zip']
Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1848, in _prepare_split_single
writer.write_table(table)
~~~~~~~~~~~~~~~~~~^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 765, in write_table
self._write_table(pa_table, writer_batch_size=writer_batch_size)
~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/arrow_writer.py", line 773, in _write_table
pa_table = table_cast(pa_table, self._schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
raise CastError(
...<3 lines>...
)
datasets.table.CastError: Couldn't cast
type: string
timestamp: double
positions: string
-- schema metadata --
pandas: '{"index_columns": [{"kind": "range", "name": null, "start": 0, "' + 626
to
{'# SO-101 multi-robot real-data SysID CSV handoff': Value('string'), '__index_level_0__': Value('string'), '__index_level_1__': Value('string'), '__index_level_2__': Value('string'), '__index_level_3__': Value('string'), '__index_level_4__': Value('string')}
because column names don't match
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
~~~~~~~~~~~~~~~~~~~~~~~~~^
builder, max_dataset_size_bytes=max_dataset_size_bytes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1694, in _prepare_split
for job_id, done, content in self._prepare_split_single(
~~~~~~~~~~~~~~~~~~~~~~~~~~^
gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
):
^
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1850, in _prepare_split_single
raise DatasetGenerationCastError.from_cast_error(
...<4 lines>...
)
datasets.exceptions.DatasetGenerationCastError: An error occurred while generating the dataset
All the data files must have the same columns, but at some point there are 3 new columns ({'type', 'timestamp', 'positions'}) and 6 missing columns ({'__index_level_1__', '# SO-101 multi-robot real-data SysID CSV handoff', '__index_level_0__', '__index_level_3__', '__index_level_2__', '__index_level_4__'}).
This happened while the csv dataset builder was generating data using
zip://so101_multi_robot_sysid_20260818/legacy_sysid_csv/Lerobot SysID/so101_sysid_data/no_camera/train_42motion/control.csv::hf://datasets/VigneshBhavan/AB-testing@3cac66bc2efa7c4b41a0b7d533c3fc1864955663/so101_multi_robot_sysid_20260818.zip, ['hf://datasets/VigneshBhavan/AB-testing@3cac66bc2efa7c4b41a0b7d533c3fc1864955663/so101_multi_robot_sysid_20260818.zip']
Please either edit the data files to have matching columns, or separate them into different configurations (see docs at https://hf.co/docs/hub/datasets-manual-configuration#multiple-configurations)Need help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
# SO-101 multi-robot real-data SysID CSV handoff string | __index_level_0__ string | __index_level_1__ string | __index_level_2__ string | __index_level_3__ string | __index_level_4__ string |
|---|---|---|---|---|---|
or typing data. | CSV data only. No scripts | plots | meshes | checkpoints | simulation |
null | Robots: | null | null | null | null |
null | - `orange_1` | null | null | null | null |
null | - `orange_2` | null | null | null | null |
null | - `my_follower_5AE6052975` (Black 2) | null | null | null | null |
null | Raw multi-robot telemetry: | null | null | null | null |
null | `raw_per_robot/st3215_on_robot_health/` | null | null | null | null |
null | Broader command/state SysID CSVs: | null | null | null | null |
null | `legacy_sysid_csv/extracted/Lerobot SysID/so101_sysid_data/` | null | null | null | null |
null | `legacy_sysid_csv/extracted/Lerobot SysID/data/` | null | null | null | null |
null | Robot IDs and camera/no-camera variants are kept in their original paths. | null | null | null | null |
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