BARD basemap generation error

gistfile1.txt

Loaded BARD library.
Read shapefile '/projects/publicmapping_michigan/local/data/shapes/blocks/PL_BLOCK_MI_M.shp'.
Error in function (sdf, nb = NULL, queen = TRUE)  :
  unused argument(s) (keepgeom = FALSE)

ERROR:

The BARD map could not be computed. Please check the configuration settings
and try again.

The following traceback may provide more information:
Traceback (most recent call last):
  File "/projects/publicmapping_michigan/trunk/django/publicmapping/redistricting/management/commands/setup.py", line 1650, in build_bardmap
    bardmap = r.spatialDataFrame2bardBasemap(sdf,keepgeom=r(False))
  File "/usr/lib/python2.6/dist-packages/rpy2/robjects/__init__.py", line 423, in __call__
    res = super(RFunction, self).__call__(*new_args, **new_kwargs)
RRuntimeError: Error in function (sdf, nb = NULL, queen = TRUE)  :
  unused argument(s) (keepgeom = FALSE)