The current user '%1!s!' does not have a valid linked server login mapping for non-SQL Server Publisher %2!s!]. Replication ...

The current user '%1!s!' does not have a valid linked server login mapping for non-SQL Server Publisher [%2!s!].  Replication connects to the Publisher through a linked server; use the stored procedure sp_addlinkedsrvlogin to map the user's login to this linked server.