英文:
How do I properly reference NETStandard 2.1?
问题
我看到有评论说我需要'需要 Core 3.0'，但我不确定确切的含义是什么。Core 3.0已安装在我的系统上，如果我想要的话，我可以创建一个Core 3.0项目，但据我所知，我不能创建一个同时针对Core 3.0和.NET Standard 2.1的项目。
目前我的项目（类库）的目标框架是.NET Standard 2.1。编译没有问题，但当我运行引用它的项目（可执行文件）时，出现错误：
无法加载文件或程序集'netstandard，版本=2.1.0.0，文化=中性，公钥令牌=cc7b13ffcd2ddd51'或其依赖项之一。系统找不到指定的文件。
这个可执行文件是一个.NET Framework 4.7项目。我需要我的dll在.NET Framework和Core项目中都能运行的原因是什么。
有没有什么诀窍可以使这正常工作？是否有一种不同的方法来创建.NET Standard 2.1项目？或者是否有依赖文件需要我本地复制？
英文:
I've seen comments stating that I will 'need Core 3.0' but I'm not sure what that means exactly. Core 3.0 is installed on my system and I can create a Core 3.0 project if I want to but as far as I know I can't create a project that targets both Core 3.0 and .NET Standard 2.1.
Currently my project (class lib) target framework is .NET Standard 2.1. It compiles fine but when I run the project (exe) that references it I get an error:
Could not load file or assembly 'netstandard, Version=2.1.0.0, Culture=neutral,
PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file
specified.
The exe is a NET Framework 4.7 project. The reason that I need my dll to run under NET Standard is that it needs to be referenced in both NET Framework and Core projects.
Is there a trick to getting this to work properly? Is there a different way to create a NET Standard 2.1 project? Or are there dependency files that I need to copy locally?
答案1
得分: 1
在从.NET Framework项目导入.NET Standard项目时遇到了此问题。要解决此问题，请在您的 Web.config 文件中添加以下内容，并将我的版本4.7.1和2.0更改为您所需的版本：
<system.web>
<compilation debug="true" targetFramework="4.7.1">
<assemblies>
<add assembly="netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" />
</assemblies>
</compilation>
<httpRuntime targetFramework="4.7.1"/>
...
</system.web>
英文:
Had that issue when importing a net standart project from a net framework project. To fix put inside your Web.config the following, change my versions 4.7.1 and 2.0 to your needed ones:
<system.web>
<compilation debug="true" targetFramework="4.7.1">
<assemblies>
<add assembly="netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" />
</assemblies>
</compilation>
<httpRuntime targetFramework="4.7.1"/>
...
</system.web>
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