Info on streams error ORA-24034?

Got this error from a failed Streams setup on two database servers (probably Linux 11.2.0.3).  Neither had streams set up on them before:

 

ERROR at line 1:

ORA-23616: Failure in executing block 12 for script

132596015DD53AEBE05347827810B48C with

ORA-24034: application APPLY$_CMDB1_1 is already a subscriber for queue

STRMADMIN.APPLY$_CMDB1_1_Q

More than a warning (as seen in Middleware documentation), this Streams implementation fails:

 

Output Log

SQL*Plus: Release 11.2.0.3.0 Production on Tue Apr 7 16:05:38 2015 Copyright (c) 1982, 2011, Oracle.  All rights reserved. SQL> SQL> SQL> Executing .. SQL> connect STRMADMIN/****** SQL> Connected. SQL> SQL> Executing .. SQL> DROP DATABASE LINK CMDB2 SQL> DROP DATABASE LINK CMDB2