I attach a sample to show the problem. You can run it and find out where
the problem is. Because the size limit, I remove the package in the
project. The package include, Kendo MVC (2015.1.429.440.Trial), MVC 4
and many others. The simplest way to recreate the solution is to create
new Telerik MVC project (name: MVC_Controls_Kendo) and select .Net 4 and
ASPX (not razor), and add the source files attached.
After launching the project, just click on "Display Pool Info", which will go to PoolInfo.aspx. But PoolInfo.aspx can't be displayed with error: "Specified cast is not valid".
The project has everything it is needed. If you have any question, please let me know. Thanks.