arzmohd2k8 (8/13/2014)
Database connectivity cannot be opened because it is version 661. This server support version 655 and earlierA downgrade path is not supported.
You're trying to attach a SQL Server 2008 R2 database to SQL Server 2008. They are different versions (like SQL 2012 and SQL 2014). You cannot downgrade databases.
You'll have to find a SQL Server 2008 R2 instance to attach this DB to.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability