assembly 'System.Runtime' is needed to compile

[juanjose53]

Hi Team,

I am getting the following error when I try to cumpile my template. (I am using .net 4.6.2)

Thanks for your help

• error: (0, 0) The type 'System.Attribute' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.
  Temporary files of the compilation can be found in (please delete the folder)

[ierof]

I had the same problem on windows 10 update 1607.
In my case it was because of .winmd files in my app domain loaded assemblies.
They have version 255.255.255.255 of mscorlib ref (http://screencast.com/t/xZlsNAoKKga)
I solved it by ignoring .winmd files in custom ReferenceResolver https://antaris.github.io/RazorEngine/ReferenceResolver.html

private class MyIReferenceResolver : IReferenceResolver
{
    public IEnumerable<CompilerReference> GetReferences(TypeContext context, IEnumerable<CompilerReference> includeAssemblies)
    {
        return new UseCurrentAssembliesReferenceResolver()
                    .GetReferences(context, includeAssemblies)
                    .Where(f => !f.GetFile().EndsWith(".winmd"));
    }
}

[juanjose53]

Can you post a complete example about how are you using that code? I am still having that problem. Thanks.

[ierof]

@juanjose53 written above class usage:

var config = new TemplateServiceConfiguration { Debug = true, ReferenceResolver = new MyIReferenceResolver() };
Engine.Razor = RazorEngineService.Create(config);
var template = "Hello @Model.Name, welcome to RazorEngine!";
var text = Engine.Razor.RunCompile(template, "templateKey", null, new { Name = "World"});

Maybe you have some other problem? Can you provide some diagnostic info about your problem? Usually razor outputs debug information in %temp% directory.

For example in my case there was %temp%/RazorEngine_xrkf2y5t.mjy/ folder and vuolyf4m.cmdline file there with command parameters for csc.exe

[juanjose53]

Hi Irina,

I attach the output of your example running from my app.

Thanks in advance for your help.

razorout.zip

[ierof]

@juanjose53 I think you have the same issue.

I see in your output some suspicious libs:

/R:"C:\WINDOWS\system32\WinMetadata\Windows.UI.winmd" 
/R:"C:\WINDOWS\system32\WinMetadata\Windows.Foundation.winmd" 

I think custom ReferenceResolver will help you

[matthid]

@ierof Do you want to contribute this to the docs. Or should we add this to RazorEngine itself?

[ierof]

@matthid up to you. If you think it necessary, you can add in to the docs :)

[dalekawamura]

Side note to ierof's Sept 30 comment above:

The where clause is in the example is incorrect.

The where clause should be:
.Where(f => !f.GetFile().EndsWith(".winmd"));
instead of:
.Where(f => !f.GetFile().EndsWith("*.winmd"));

The example still returns "C:\WINDOWS\system32\WinMetadata\Windows.UI.winmd" and "C:\WINDOWS\system32\WinMetadata\Windows.Foundation.winmd"

[ierof]

@dalekawamura thanks! You're right. My example is corrent now.

[krk]

Another workaround is to add System.Runtime to the assembly list.

private class SystemRuntimeResolver : IReferenceResolver
{
	private static readonly IReferenceResolver _resolver = new UseCurrentAssembliesReferenceResolver();
	private static readonly Assembly _systemRuntime = Assembly.Load("System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a");

	public IEnumerable<CompilerReference> GetReferences(TypeContext context, IEnumerable<CompilerReference> includeAssemblies = null)
	{
		IEnumerable<CompilerReference> assemblies;

		var newReference = new[] { CompilerReference.From(_systemRuntime), };

		if (includeAssemblies == null)
		{
			assemblies = newReference;
		}
		else
		{
			assemblies = includeAssemblies.Concat(newReference);
		}

		return _resolver.GetReferences(context, assemblies);
	}
}