ts

Traceback (most recent call last):
  File "/usr/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/user/.vscode-server/extensions/ms-python.python-2021.3.658691958/pythonFiles/lib/python/debugpy/__main__.py", line 45, in <module>
    cli.main()
  File "/home/user/.vscode-server/extensions/ms-python.python-2021.3.658691958/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 444, in main
    run()
  File "/home/user/.vscode-server/extensions/ms-python.python-2021.3.658691958/pythonFiles/lib/python/debugpy/../debugpy/server/cli.py", line 285, in run_file
    runpy.run_path(target_as_str, run_name=compat.force_str("__main__"))
  File "/usr/lib/python3.6/runpy.py", line 263, in run_path
    pkg_name=pkg_name, script_name=fname)
  File "/usr/lib/python3.6/runpy.py", line 96, in _run_module_code
    mod_name, mod_spec, pkg_name, script_name)
  File "/usr/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/mnt/d/predictor/dsp/metra_dat_reader.py", line 191, in <module>
    main()
  File "/mnt/d/predictor/dsp/metra_dat_reader.py", line 181, in main
    dfw.save_data_frame(psd_res, '/mnt/d/processfolder/logpsd.parquet')
  File "/mnt/d/predictor/dsp/file_reader_writer.py", line 206, in save_data_frame
    data_frame.to_parquet(file_path, compression="gzip", engine = 'fastparquet')
  File "/home/user/.local/lib/python3.6/site-packages/pandas/util/_decorators.py", line 199, in wrapper
    return func(*args, **kwargs)
  File "/home/user/.local/lib/python3.6/site-packages/pandas/core/frame.py", line 2372, in to_parquet
    **kwargs,
  File "/home/user/.local/lib/python3.6/site-packages/pandas/io/parquet.py", line 276, in to_parquet
    **kwargs,
  File "/home/user/.local/lib/python3.6/site-packages/pandas/io/parquet.py", line 199, in write
    **kwargs,
  File "/home/user/.local/lib/python3.6/site-packages/fastparquet/writer.py", line 935, in write
    times=times, index_cols=index_cols, partition_cols=partition_on)
  File "/home/user/.local/lib/python3.6/site-packages/fastparquet/writer.py", line 764, in make_metadata
    object_encoding=oencoding, times=times)
  File "/home/user/.local/lib/python3.6/site-packages/fastparquet/writer.py", line 111, in find_type
    object_encoding = infer_object_encoding(data)
  File "/home/user/.local/lib/python3.6/site-packages/fastparquet/writer.py", line 288, in infer_object_encoding
    raise ValueError("Can't infer object conversion type: %s" % head)