dtype <class 'pandas._libs.tslib.Timestamp'> not understood

[nebain]

When trying out the basic code:

import rasppy.convert as rasp

rws = '/mnt/remote/meso2-storage1/archive/profiler/lidar_raw/PROF_CHAZ/2017/08/20170814_whole_radial_wind_data.csv'
scan = '/mnt/remote/meso2-storage1/archive/profiler/lidar_raw/PROF_CHAZ/2017/08/20170814_scan.xml'
wind = '/mnt/remote/meso2-storage1/archive/profiler/lidar_raw/PROF_CHAZ/2017/08/20170814_reconstruction_wind_data.csv'

lidar = rasp.lidar_from_csv(rws, scans=scan, wind=wind)

I get:

Traceback (most recent call last):
  File "test.py", line 7, in <module>
    lidar = rasp.lidar_from_csv(rws, scans=scan, wind=wind)
  File "/home/nbain/rasppy/raspPy/rasppy/convert.py", line 49, in lidar_from_csv
    csv = pd.read_csv(rws, dtype=dtypes)
  File "/home/nbain/temp-python3.5/lib/python3.5/site-packages/pandas/io/parsers.py", line 655, in parser_f
    return _read(filepath_or_buffer, kwds)
  File "/home/nbain/temp-python3.5/lib/python3.5/site-packages/pandas/io/parsers.py", line 405, in _read
    parser = TextFileReader(filepath_or_buffer, **kwds)
  File "/home/nbain/temp-python3.5/lib/python3.5/site-packages/pandas/io/parsers.py", line 764, in __init__
    self._make_engine(self.engine)
  File "/home/nbain/temp-python3.5/lib/python3.5/site-packages/pandas/io/parsers.py", line 985, in _make_engine
    self._engine = CParserWrapper(self.f, **self.options)
  File "/home/nbain/temp-python3.5/lib/python3.5/site-packages/pandas/io/parsers.py", line 1605, in __init__
    self._reader = parsers.TextReader(src, **kwds)
  File "pandas/_libs/parsers.pyx", line 513, in pandas._libs.parsers.TextReader.__cinit__ (pandas/_libs/parsers.c:5654)
  File "/home/nbain/temp-python3.5/lib/python3.5/site-packages/pandas/core/dtypes/common.py", line 1912, in pandas_dtype
    raise TypeError('dtype {0} not understood'.format(dtype))
TypeError: dtype <class 'pandas._libs.tslib.Timestamp'> not understood

This is with Python 3.5.3 and pandas 0.20.3.