Report definition language (RDL) files created in SQL Server 2008 R2 CTP2 cannot be converted to be compatible with SQL Server ...

Report definition language (RDL) files created in SQL Server 2008 R2 CTP2 cannot be converted to be compatible with SQL Server 2008 Reporting Services. You can upgrade the RDL file to the current format by opening and saving it in Report Designer, and then publishing it to the report server.