使用RazorTemplates库时发生错误：'CS0012：类型'System.Attribute'在未引用的程序集中定义'

Question

On some machines, executing a razor template via RazorTemplates works OK.

On others, I receive the following message:

TemplateCompilationException

error CS0012: 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'.

Info:

• This is within a WPF application running on .NET 4.7.
• The assembly has a reference to System.Runtime.4.3.0\\lib\\net462\\System.Runtime.dll (v4.1.1.0)
• However at runtime, this assembly does not show up in the 'Modules' list.

It seems the Attribute object exists in both System.Runtime and mscorlib.

Answer 1

Looks like this is an underlying issue somewhere between win10 and the RazorTemplates library.

In the end i switched from RazorTemplates to RazorEngine: https://github.com/Antaris/RazorEngine

And there is a page here that explains how to fix the problem via a Resolver:

https://github.com/Antaris/RazorEngine/issues/416

Answer 2

System.Runtime is part of the .Net Framework and is installed in the GAC during framework installation.

This could happen for two possible reasons:

1. It's not on the machine.
2. It's the wrong version.

For the machines this fails on check what version of the .Net runtime they have and/or inspect the GAC for this file and version.

Missing the framework, install it. :-)

If machines have a version but it's not the expected version do either:

1. Install the correct framework version
2. Use a binding redirect in your config file