Domain-wide information can only be updated on the Active Directory Domain Controller that holds the infrastructure operations ...

Domain-wide information can only be updated on the Active Directory Domain Controller that holds the infrastructure operations master role.  [Status/Consequence] Adprep has stopped on this Active Directory Domain Controller and must be run on the current infrastructure master, which is %1. [User Action]  Log on to the %2 Active Directory Domain Controller, change to the directory of adprep.exe on the installation media, and then type the following command at the command prompt to complete the domain update:  adprep.exe /domainprep