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ML Foundations 195

Error code:   DatasetGenerationError
Exception:    TypeError
Message:      Couldn't cast array of type
struct<WARC-Type: string, WARC-Date: timestamp[s], WARC-Record-ID: string, Content-Length: string, Content-Type: string, WARC-Warcinfo-ID: string, WARC-Concurrent-To: string, WARC-IP-Address: string, WARC-Target-URI: string, WARC-Payload-Digest: string, WARC-Block-Digest: string, WARC-Truncated: string, WARC-Identified-Payload-Type: string>
to
{'WARC-Type': Value(dtype='string', id=None), 'WARC-Date': Value(dtype='timestamp[s]', id=None), 'WARC-Record-ID': Value(dtype='string', id=None), 'Content-Length': Value(dtype='string', id=None), 'Content-Type': Value(dtype='string', id=None), 'WARC-Warcinfo-ID': Value(dtype='string', id=None), 'WARC-Concurrent-To': Value(dtype='string', id=None), 'WARC-IP-Address': Value(dtype='string', id=None), 'WARC-Target-URI': Value(dtype='string', id=None), 'WARC-Payload-Digest': Value(dtype='string', id=None), 'WARC-Block-Digest': Value(dtype='string', id=None), 'WARC-Truncated': Value(dtype='string', id=None)}
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 2011, in _prepare_split_single
                  writer.write_table(table)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/arrow_writer.py", line 585, in write_table
                  pa_table = table_cast(pa_table, self._schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2302, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2261, in cast_table_to_schema
                  arrays = [cast_array_to_feature(table[name], feature) for name, feature in features.items()]
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2261, in <listcomp>
                  arrays = [cast_array_to_feature(table[name], feature) for name, feature in features.items()]
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1802, in wrapper
                  return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 1802, in <listcomp>
                  return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/table.py", line 2122, in cast_array_to_feature
                  raise TypeError(f"Couldn't cast array of type\n{_short_str(array.type)}\nto\n{_short_str(feature)}")
              TypeError: Couldn't cast array of type
              struct<WARC-Type: string, WARC-Date: timestamp[s], WARC-Record-ID: string, Content-Length: string, Content-Type: string, WARC-Warcinfo-ID: string, WARC-Concurrent-To: string, WARC-IP-Address: string, WARC-Target-URI: string, WARC-Payload-Digest: string, WARC-Block-Digest: string, WARC-Truncated: string, WARC-Identified-Payload-Type: string>
              to
              {'WARC-Type': Value(dtype='string', id=None), 'WARC-Date': Value(dtype='timestamp[s]', id=None), 'WARC-Record-ID': Value(dtype='string', id=None), 'Content-Length': Value(dtype='string', id=None), 'Content-Type': Value(dtype='string', id=None), 'WARC-Warcinfo-ID': Value(dtype='string', id=None), 'WARC-Concurrent-To': Value(dtype='string', id=None), 'WARC-IP-Address': Value(dtype='string', id=None), 'WARC-Target-URI': Value(dtype='string', id=None), 'WARC-Payload-Digest': Value(dtype='string', id=None), 'WARC-Block-Digest': Value(dtype='string', id=None), 'WARC-Truncated': Value(dtype='string', id=None)}
              
              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 1524, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1099, in stream_convert_to_parquet
                  builder._prepare_split(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 1882, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/builder.py", line 2038, 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