Cannot Add Servers to server pool

Question

Oracle VM 3.0.1
Created clustered server pool
when I try to add 2 Oracle VM servers to the server pool I get the following error message for both servers:
(Note I can add/remove servers from a different server pool without "activate cluster" checked)
any help much appreciated
Actioner
Starting operation 'Server Role Update' on object '44:45:4c:4c:37:00:10:4a:80:47:b5:c0:4f:4d:34:4a (xxxxx)'
Completed operation 'Server Role Update' completed with direction ==> DONE
Starting operation 'Server Join Server Pool' on object '44:45:4c:4c:37:00:10:4a:80:47:b5:c0:4f:4d:34:4a (xxxxx)'
Completed operation 'Server Join Server Pool' completed with direction ==> LATER
Starting operation 'Server Pool Construct' on object '0004fb00000200008422a4ff0a677d90 (POOL 2)'
Completed operation 'Server Pool Construct' completed with direction ==> DONE
Starting operation 'Server Pool Virtual IP Configure' on object '0004fb00000200008422a4ff0a677d90 (POOL 2)'
Completed operation 'Server Pool Virtual IP Configure' completed with direction ==> DONE
**Starting operation 'Server Pool Member Update' on object '0004fb00000200008422a4ff0a677d90 (POOL 2)'**
**Job Internal Error (Indeterminate)java.lang.NullPointerException*at com.oracle.ovm.mgr.action.ActionEngine.replaceUnamePwd(ActionEngine.java:621)*at com.oracle.ovm.mgr.action.ActionEngine.logServerCommand(ActionEngine.java:570)
etc

Answer 1

I just resolved my issue.
On both of the servers that were having issues, I renamed the cluster.conf file, and then tried to add again...and it worked.
It seems that VM Manager was unable to update the existing cluster.conf file which had some old information in it...so I just had it create a new file.
Cluster.conf is located in /etc/ocfs2. Hope this helps.