Fabrication error

Hi,

I am trying to setup fabrication and struck with following error while adding the group to the server…

D:\Program Files\MySQL\mysql-utilities-1.4.0\scripts> mysqlfabric.py group add global 172.20.190.26:3307 root root
Procedure :
{ uuid = 12729fce-a313-431b-b7ca-2c9c9f3f7438,
finished = True,
success = False,
return = ServerError: State store seems to be corrupted. Server (458d8eae-be1a-11e2-9527-902b344cdf5f) does not belong to a group.,
activities =
}

Appreciate your help.

Thanks
Mahesh