I have the same problem after updating the Telerik reporting from 22.214.171.1246 to 126.96.36.1998.
I ran the Telerik Upgrade Wizard but the problem persists. I can build in Visual Studio but the build in TFS fails:
Error MSB3103: Invalid Resx file. Type Telerik.Reporting.Drawing.Unit, Telerik.Reporting, Version=188.8.131.528
What could be the problem here?