I upgraded the version of Telerik windows controls from v.2011.2.11.831 to 2012.2.608.20.
I opened another thread
before i have encounter this error:
Open the design form, make any changes (for example, i changed the position of a random control), close the design form and then reopen. I get the error "exception of type system.componentmodel.design.exceptioncollection". When i look in resx files, the version of controls is still the old one. Please, see the attached file. Can you tell me what is happening?