One of my users has reported this error when using Report Builder 2008 R2 to save a report design back to a SSRS 2012 SP1 server.
The data cache for the report edit session is not valid. Rerun the report to create a new and valid data cache. (rsDataCacheMismatch) For more information about this error navigate to the report server on the local server machine, or enable remote errors
Does anyone know the cause and/or fix for this?
I can see people have been searching this error message in Google because it's coming up as a suggested search query, but I can't find where people have actually posted the message and/or received feedback.