Thanks for your replay.
You're correct that existence of an element with the same name in different section could lead to the mentioned by Alisha error. But it could also be a result of wrong Telerik.Framework
assembly version being used.
The element <caching defaultProvider="memoryCache">
was added in the 3.5 version, and it didn't exist in the 3.2 web.config.
Please verify the assemblies version in your bin folder, especially Telerik.Framework.dll.
It should be 3.5.1714.x.
As this assembly carries the configuration definitions for caching. And as John suggested you can try using the 3.5 web.config with just modifying your connection string and other custom settings used with the previous version, if any.
Let us know about the results.
All the best,
the Telerik team
Check out Telerik Trainer
, the state of the art learning tool for Telerik products.