# Pastebin BZsXBGL6
2021-10-27 00:00:41,023 listenbrainz.webserver INFO     Beginning spark dump of listens from TimescaleDB...
2021-10-27 00:00:41,023 INFO Beginning spark dump of listens from TimescaleDB...
2021-10-27 00:00:41,025 listenbrainz.webserver INFO     dump 2021-10-26 00:00:04 to 2021-10-27 00:00:04
2021-10-27 00:00:41,025 INFO dump 2021-10-26 00:00:04 to 2021-10-27 00:00:04
Unable to retrieve git commit. Error: %s [Errno 2] No such file or directory: '.git-version'
Traceback (most recent call last):
  File "manage.py", line 297, in <module>
    cli()
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 829, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 782, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1259, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1066, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.7/site-packages/click/core.py", line 610, in invoke
    return callback(*args, **kwargs)
  File "/code/listenbrainz/listenbrainz/db/dump_manager.py", line 168, in create_incremental
    ls.dump_listens_for_spark(dump_path, dump_id=dump_id, start_time=start_time, end_time=end_time)
  File "/code/listenbrainz/listenbrainz/listenstore/timescale_listenstore.py", line 878, in dump_listens_for_spark
    parquet_index = self.write_parquet_files(archive_name, temp_dir, tar, start, end, full_dump, parquet_index)
  File "/code/listenbrainz/listenbrainz/listenstore/timescale_listenstore.py", line 785, in write_parquet_files
    len(result["m_recording_name"]) + len(str(result["artist_credit_id"]))
TypeError: object of type 'NoneType' has no len()