Traceback (most recent call last):
  File "alternative_models/coulomb_models/generic_coulomb.py", line 31, in <module>
    data = CoulombNet.schema().load(folder_path)
  File "/scratch/mhoffman/deep_quantum/.sciscons/env/lib/python2.7/site-packages/tflon/data/tables.py", line 58, in load
    return {name: self._schema[name](directory) for name in self._schema}
  File "/scratch/mhoffman/deep_quantum/.sciscons/env/lib/python2.7/site-packages/tflon/data/tables.py", line 58, in <dictcomp>
    return {name: self._schema[name](directory) for name in self._schema}
  File "/scratch/mhoffman/deep_quantum/.sciscons/env/lib/python2.7/site-packages/tflon/data/tables.py", line 21, in __call__
    args = [self._reader( os.path.join(directory, fn) )]
  File "/scratch/mhoffman/deep_quantum/.sciscons/env/lib/python2.7/site-packages/tflon/data/parquet.py", line 45, in read_parquet
    use_pandas_metadata=use_pandas_metadata).to_pandas()
  File "table.pxi", line 1120, in pyarrow.lib.Table.to_pandas
  File "/usr/local/lib/python2.7/dist-packages/pyarrow/pandas_compat.py", line 531, in table_to_blockmanager
    assert len(logical_index_names) == len(index_columns_set)
AssertionError
scons: *** [output/temp/qm9/split_0/target_0] Error 1
scons: building terminated because of errors.
FAILURE temp/.v5_sFt6fM9lhg0AaZG5h93sKcmI/EXECUTE