Datasets:

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Error code:   DatasetGenerationError
Exception:    CastError
Message:      Couldn't cast
schema: string
library: string
version: string
git_sha: null
created_at: timestamp[s]
base_model: null
method: string
inputs: list<item: struct<kind: string, ref: string, config: null, provenance: null>>
  child 0, item: struct<kind: string, ref: string, config: null, provenance: null>
      child 0, kind: string
      child 1, ref: string
      child 2, config: null
      child 3, provenance: null
params: struct<generator_model: null, judge_model: null, grpo_scoring_model: null, export_formats: list<item (... 97 chars omitted)
  child 0, generator_model: null
  child 1, judge_model: null
  child 2, grpo_scoring_model: null
  child 3, export_formats: list<item: string>
      child 0, item: string
  child 4, output_split: struct<train: double, validation: double>
      child 0, train: double
      child 1, validation: double
  child 5, pipeline_config_hash: string
messages: list<item: struct<role: string, content: string>>
  child 0, item: struct<role: string, content: string>
      child 0, role: string
      child 1, content: string
to
{'messages': List({'role': Value('string'), 'content': Value('string')})}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1835, in _prepare_split_single
                  for key, table in generator:
                                    ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 621, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 361, 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 2381, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2309, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              schema: string
              library: string
              version: string
              git_sha: null
              created_at: timestamp[s]
              base_model: null
              method: string
              inputs: list<item: struct<kind: string, ref: string, config: null, provenance: null>>
                child 0, item: struct<kind: string, ref: string, config: null, provenance: null>
                    child 0, kind: string
                    child 1, ref: string
                    child 2, config: null
                    child 3, provenance: null
              params: struct<generator_model: null, judge_model: null, grpo_scoring_model: null, export_formats: list<item (... 97 chars omitted)
                child 0, generator_model: null
                child 1, judge_model: null
                child 2, grpo_scoring_model: null
                child 3, export_formats: list<item: string>
                    child 0, item: string
                child 4, output_split: struct<train: double, validation: double>
                    child 0, train: double
                    child 1, validation: double
                child 5, pipeline_config_hash: string
              messages: list<item: struct<role: string, content: string>>
                child 0, item: struct<role: string, content: string>
                    child 0, role: string
                    child 1, content: string
              to
              {'messages': List({'role': Value('string'), 'content': Value('string')})}
              because column names don't match
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1379, 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 956, 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 1702, 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 1887, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset