I got this error
error rsInvalidReportDefinition
The report definition is not valid. Details: The report definition has an invalid target namespace 'http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition' which cannot be upgraded.
It is in a team project, it works OK on all other machine in my team except mine. So I think there is no error in the code. It happened after another programmer updated one report file from 2005 to 2008 and checked it in. I am using visual studio 2010, SQL server 2008 r2, I have all ReportViewer2005,2008 and 2010 installed in my machine. I have all the version 8,9 and 10 about ReportViewer.Common, ReportViewer.ProcessingObjectModel, ReportViewer.WebForms, ReportViewer.WinForms in GAC. The project is a winform project, so the reference I added in the project is ReportViewer.WinForms version 10.
I tried reinstall ReportViewer, not hlep.
Any suggestions? Thanks