Mvc5 VS2013 errors in razor view

Question

I have an problem in Visual Studio where I am getting an error in my MVC5 razor view on a line of code calling the ViewBag.

@{
    ViewBag.Title = "Home Page";
 }

The error is one or more types required to compile a dynamic expression, are you missing a reference.

I've been searhing around for a solution. A few posts have asked me to add a reference to Microsoft.Csharp v.4.0.30319. This is done but still the problem. The other solution is to add the line

<compilation debug="true" targetFramework="4.0" />

to the config file. This can't be done as I am targeting 4.5, So i altered it to 4.5. Still the same problem.

There is also an issue with adding any lambda into the view, such as

@Html.LabelFor(a=>a.Property);

Which also causes an error: 'System.Web.Mvc.Html.LabelExtensions.LabelFor<TModel,TValue>(System.Web.Mvc.HtmlHelper<TModel>, System.Linq.Expressions.Expression<System.Func<TModel,TValue>>, System.Collections.Generic.IDictionary<string,object>)' cannot be inferred from the usage. Try specifying the type arguments explicitly

Oddly enough though, the application does run as expected so I think this is a Visual Studio issue of some kind.

Any help welcome!

Answer 1

Changing to targetFramework="4.5.1" in the web.config fixed it for me.