I am getting the following error when trying to deploy my SSRS reports on our SQL 2008 R2 Server "The report server cannot decrypt the symmetric key used to access sensitive or encrypted data in a report server database...". Most of the solutions on the Web suggest to delete the encryption keys, then reconfigure the datasources. I am still a beginner in SSRS, Is there another solution to fix this issue, Thanks
After checking this link Microsoft support link, it seems that this is a know issue in SSRS reports. And it seems the only way to fix it is to delete the Encryption keys.
This solved my problem