The operations master roles held by this directory server could not transfer to the following remote directory server. Remote ...

The operations master roles held by this directory server could not transfer to the following remote directory server. 
 
Remote directory server: 
%1 
 
This is preventing removal of this directory server. 
 
User Action 
Investigate why the remote directory server might be unable to accept the operations master roles, or manually transfer all the roles that are held by this directory server to the remote directory server. Then, try to remove this directory server again. 
 
Additional Data 
Error value:
%4 %2 
Extended error value:
%3 
Internal ID:
%5