AssertionError: Specify at least one of the arguments 'ds' or 'proj'

======================================================================
FAIL: test_calculation_of_tie_point_grid (tests.test_COREG_LOCAL.CompleteWorkflow_INTER1_S2A_S2A)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "D:\Daten\Code\python\arosics\tests\test_COREG_LOCAL.py", line 60, in test_calculation_of_tie_point_grid
    CRL = COREG_LOCAL(self.ref_path, self.tgt_path, **self.coreg_kwargs)
  File "D:\Daten\Code\python\arosics\arosics\CoReg_local.py", line 227, in __init__
    ignore_errors=False)
  File "D:\Daten\Code\python\arosics\arosics\CoReg.py", line 283, in __init__
    self._get_image_params()
  File "D:\Daten\Code\python\arosics\arosics\CoReg.py", line 404, in _get_image_params
    self.ref = GeoArray_CoReg(self.params, 'ref')
  File "D:\Daten\Code\python\arosics\arosics\CoReg.py", line 59, in __init__
    super(GeoArray_CoReg, self).__init__(path_or_geoArr, nodata=nodata, progress=progress, q=q)
  File "D:\Programme\Anaconda3\lib\site-packages\geoarray\baseclasses.py", line 87, in __init__
    self.projection   = projection   if projection         else self.projection
  File "D:\Programme\Anaconda3\lib\site-packages\geoarray\baseclasses.py", line 301, in projection
    assert self.projection is None or prj_equal(self.projection, prj),\
  File "D:\Programme\Anaconda3\lib\site-packages\py_tools_ds\geo\projection.py", line 79, in prj_equal
    return get_proj4info(proj=prj1)==get_proj4info(proj=prj2)
  File "D:\Programme\Anaconda3\lib\site-packages\py_tools_ds\geo\projection.py", line 32, in get_proj4info
    assert ds or proj, "Specify at least one of the arguments 'ds' or 'proj'"
AssertionError: Specify at least one of the arguments 'ds' or 'proj'