Using “nameof” operator in Razor views

Question

On my VS.NET 2015 development machine, the Razor views that use the nameof operator work like a charm.

When deploying to a Windows server, it fails to compile the CSHTML

Answer 1

Make sure in your file "web.config" the node system.codedom exists.

<system.codedom>
    <compilers>
      <compiler language="c#;cs;csharp" extension=".cs"
        type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701"/>
      <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb"
        type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+"/>
    </compilers>
 </system.codedom>

And you'd reference the package Microsoft.CodeDom.Providers.DotNetCompilerPlatform.

Answer 2

According to this site, you need to reference the Roslyn compiler in your Web.config file to get C# 6 features to work in your razor views.

This can be achieved simply by installing the CodeDOM Providers for .NET Compiler NuGet package.

PM> Install-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform