error with call to superclass __init__()

[prjemian]

when starting USAXS:

/share1/bluesky/conda_envs/bluesky/lib/python3.7/site-packages/apstools/devices.py in __init__(self, *args, **kwargs)
   1688 
   1689     def __init__(self, *args, **kwargs):
-> 1690         FileStorePluginBase.__init__(*args, **kwargs)
   1691         self.filestore_spec = 'AD_HDF5'  # spec name stored in resource doc
   1692         self.stage_sigs.update([

TypeError: __init__() missing 1 required positional argument: 'self'