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Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code: StreamingRowsError
Exception: CastError
Message: Couldn't cast
actions: struct<q01: list<item: double>, q99: list<item: double>>
child 0, q01: list<item: double>
child 0, item: double
child 1, q99: list<item: double>
child 0, item: double
state: struct<q01: list<item: double>, q99: list<item: double>>
child 0, q01: list<item: double>
child 0, item: double
child 1, q99: list<item: double>
child 0, item: double
state_dim: int64
n_episodes: int64
act_dim: int64
suite: string
source: string
n_frames: int64
snapshot: string
img_size: int64
n_tasks: int64
to
{'n_frames': Value('int64'), 'n_episodes': Value('int64'), 'img_size': Value('int64'), 'state_dim': Value('int64'), 'act_dim': Value('int64'), 'n_tasks': Value('int64'), 'source': Value('string'), 'snapshot': Value('string'), 'suite': Value('string')}
because column names don't match
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2840, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2373, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2398, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 536, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 419, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_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
actions: struct<q01: list<item: double>, q99: list<item: double>>
child 0, q01: list<item: double>
child 0, item: double
child 1, q99: list<item: double>
child 0, item: double
state: struct<q01: list<item: double>, q99: list<item: double>>
child 0, q01: list<item: double>
child 0, item: double
child 1, q99: list<item: double>
child 0, item: double
state_dim: int64
n_episodes: int64
act_dim: int64
suite: string
source: string
n_frames: int64
snapshot: string
img_size: int64
n_tasks: int64
to
{'n_frames': Value('int64'), 'n_episodes': Value('int64'), 'img_size': Value('int64'), 'state_dim': Value('int64'), 'act_dim': Value('int64'), 'n_tasks': Value('int64'), 'source': Value('string'), 'snapshot': Value('string'), 'suite': Value('string')}
because column names don't matchNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
tbd
Demonstration shards, 128x128, stored as flat little-endian arrays plus JSON sidecars.
| directory | source | tasks | episodes | frames | state / action dim |
|---|---|---|---|---|---|
shards_l10_128/ |
LIBERO-10 from physical-intelligence/libero at a4336d589d589045d1c56423ffdf3b88a0e19b1f |
10 | 379 | 101469 | 8 / 7 |
shards_rt15_128/ |
RoboTwin 2.0 aloha-agilex clean demonstrations (clean50) |
15 | 700 | 135519 | 16 / 14 |
Per directory: agent.u8 and wrist.u8 hold frames x 128 x 128 x 3 uint8 images, state.f32 and
actions.f32 the per-frame vectors, ep_end.i32 the episode boundaries, task_idx.u8 the task of
each frame, and meta.json the shapes. SHA256SUMS covers every file.
The upstream datasets' licenses apply to the derived frames.
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