SCMS012002 ASP.NET rendering is only supported using the Smartsite Virtual Path Provider.
Problem
The error 'ASP.NET rendering is only supported using the Smartsite Virtual Path Provider.' is thrown.
Resolution
You are requesting an ASP.NET Cms Item (NAP) directly. Native ASP.NET pages cannot be previewed or embedded internally, because ASP.NET has to execute the code and needs to access the Smartsite iXperion rendering indirectly, via the VPP.
