Unsupported RPL stream version detected: 101.116.1047292257

Hello,

we are mirgating our databases, cubes, ssis packages and reports from SQL Server 2008 to 2008 R2.

Most of the reports work fine on SSRS 2008 R2, but some cannot be executed:

"Unsupported RPL stream version detected: 101.116.1047292257. Expected version 10.6."

I've tried what is suggeted in this thread: http://social.msdn.microsoft.com/Forums/is/sqlreportingservices/thread/efbbd74c-370c-4d21-b27c-448e42464a1a

But it didn't help me.

How can I fix this problem?

Thanks