Question

I’ve just installed the latest and greatest from Resharper, namely version 6. The feature list of this includes support for Razor. However, I get some odd errors when using it for Razor. I have the following simple view in About.cshtml using Razor:

@{
    ViewBag.Title = "About";
}
<h2>About</h2>

When I start writing “ViewBag” R#6 helps me autocomplete this word, and when I put in the “.” it tells me that “Title” is one of the properties available on the ViewBag-object. However, the ViewBag is underlined with a squiggly line, and the error is:

One or more types required to compile a dynamic expression cannot be found. Are you missing references to Microsoft.CSharp.dll and System.Core.dll?

Both these dll’s are present.. Note that this was a basic example, but I get the same error in every line of Razor code I have.. Some places give a different error-msg though:

Module ‘mscorlib’, Version 4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089′ should be referenced.

Trying to add a reference to this in my project tells me:

A reference to ‘mscorlib’ could not be added. This component is already automatically referenced by the build system.

Anyone seen the same errors? How can I fix this and make the squiggly lines go away?

Answer 1

The problem is now figured out… It turned out that this was only a problem in our existing projects, and not a problem when starting new projects. In our existing projects we don’t have a Web.Config file. Instead we have several similarly named config files (Web.Dev.Config, Web.Test.Config, Web.Prod.Config, etc), and we copy one of these into Web.Config in our build process. This is a problem for Resharper. Resharper looks for some Razor-references in the projects Web.Config file, and when it can’t find those references it gets problems parsing your .cshtml-files.

So; be sure to have a Web.Config file in the projects that require it if you want to use Resharper with Razor!