deja dup error

Traceback (innermost last):
  File "/usr/bin/duplicity", line 1560, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1546, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1385, in main
    action = commandline.ProcessCommandLine(sys.argv[1:])
  File "/usr/lib/python2.7/site-packages/duplicity/commandline.py", line 1149, in ProcessCommandLine
    set_selection()
  File "/usr/lib/python2.7/site-packages/duplicity/commandline.py", line 973, in set_selection
    sel.ParseArgs(select_opts, select_files)
  File "/usr/lib/python2.7/site-packages/duplicity/selection.py", line 250, in ParseArgs
    self.add_selection_func(self.glob_get_sf(arg, 0))
  File "/usr/lib/python2.7/site-packages/duplicity/selection.py", line 434, in glob_get_sf
    sel_func = self.glob_get_filename_sf(glob_str, include)
  File "/usr/lib/python2.7/site-packages/duplicity/selection.py", line 495, in glob_get_filename_sf
    if filename != "/" and filename[-1] == "/":
 IndexError: string index out of range