Problems after updating to synchronization services beta1

Cannot connect to d:\clientdb.sdf.

ADDITIONAL INFORMATION:

You are trying to access an older version of a SQL Server Compact Edition database. If this is a SQL Server CE 1.0 or 2.0 database, run upgrade.exe. If this is a SQL Server Compact Edition 3.0 or later database, run Compact / Repair. [ Db version = 3505053,Requested version = 3004180,File name =d:\clientdb.sdf. ] (SQL Server Compact Edition ADO.NET Data Provider)

and i can not open sdf file in visual studio server explorer as well. the error message is similar.

i created the clientdb.sdf using microsoft sqlserver management studio one month ago. i used it to sychoronize data from my database server,and viewed the result insqlserver management studio. it worked well, before i install beta1.

now once i edit it through sqlce 3.5 beta1, it can not be openned any more, i think the sqlce3.5 beta1 has modified the structure/ format of this file. but whysqlce3.5 is ok? is the beta1 a big change?.

or somebody tell me how to view the sdf file ofsqlce3.5 beta1, except themicrosoft sqlserver management studio, and is there any package forsqlserver management studio to supportsqlce3.5 beta1?