.net Core 2.1 中缺少 System.Web.Http [英] System.Web.Http missing in .net Core 2.1

问题描述

我的 .net core 2.1 项目中缺少 System.Web.Http.

System.Web.Http is missing in my .net core 2.1 project.

错误状态

错误 CS0234 名称空间System.Web"中不存在类型或名称空间名称Http"(您是否缺少程序集引用?)

Error CS0234 The type or namespace name 'Http' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)

请参考图片以获得更清晰

please refer the image for more clarity

推荐答案

System.Web.Http 在 dotnet core 中不可用，但可以通过安装以下 nuget 包来引用:Microsoft.AspNetCore.Mvc.WebApiCompatShim.dll.这将清除错误.

System.Web.Http is not available in dotnet core, but may be referenced by installing the following nuget package: Microsoft.AspNetCore.Mvc.WebApiCompatShim.dll. This will clear the error.

来源:https://docs.microsoft.com/en-us/dotnet/api/system.web.http.httperror?view=aspnetcore-2.1

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