I've spent the past couple of nights on this, and have come to the conclusions that I'm doing something wrong!
Basically, I have my .Net 4.0 MVC 2.0 application deployed to my 2003 Server and it's constantly giving me the following error:
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, remove the 'targetFramework' attribute from the element of the Web.config file.
I also have the .Net 3.5 MVC 1.0 application also deployed to the same server (from before the upgrade to .Net 4.0), and it works absolutely fine.
I have re-run through Phil Haack's
post on IIS6, making the
necessary changes for .Net 4.0, but
no luck.
I have been through the steps in the British Developer's post too, but no joy.
I have also tried the steps outlined
in Johan's blog post, but the
settings he mentions were already
enabled.
Obviously, I can't simply upgrade to a 2008 box, nor do I want to downgrade my software back to < 4.0 - any other ideas?
