We're trying to setup two websites, our main site and an application that will load into an iframe in our site.
Our main site is .NET 2.0 and our app is .NET 4.0 we're trying to make our app a child site from the main default however we're getting an error message...
"The value for the 'compilerVersion' attribute in the provider options must be 'v4.0' or later if you are compiling for version 4.0 or later of the .NET Framework. To compile this Web application for version 3.5 or earlier of the .NET Framework"
But we have that all taken care of...is there a way IIS needs to be configured for this?