Replication of the directory partition from the source domain controller has been aborted. Replication requires schema consistency; however, the last attempt to synchronize the schema failed. It is critical that schema replication functions properly.
Sample Event:
Replication of Naming Context %1 from source %2 has been aborted. Replication requires consistent schema but last attempt to sync the schema had failed. Error %3: %4.
See previous errors for more diagnostics. If this issue persists, contact Microsoft Product Support Services for assistance.
For more information, see:
Microsoft Help and Support for Microsoft Windows Server 2008 and above
Microsoft Knowledge Base