The local domain controller is both a global catalog and the infrastructure operations master. These two roles are not compatible. ...

The local domain controller is both a global catalog and the infrastructure operations master. These two roles are not compatible. 
 
If another domain controller exists in the domain, it should be made the infrastructure operations master. The following domain controller is a good candidate for this role. 
 
Domain controller:
%1 
 
If all domain controllers in this domain are global catalogs, then there are no infrastructure update tasks to complete, and this message might be ignored.