UnboundLocalError: local variable 'hdlr' referenced before assignment

ERROR[Thu Feb 28 21:33:17 2013]:An unexpected error occured.
Traceback (most recent call last):
  File "bwauthority_child.py", line 391, in <module>
    else: main(sys.argv)
  File "bwauthority_child.py", line 313, in main
    hdlr.attach_sql_listener('sqlite://')
UnboundLocalError: local variable 'hdlr' referenced before assignment

Running Torflow caf00196.