在dnxcore50中找不到IPrincipal

Question

我尝试在dnxcore50中使用IPrincipal。尽管它在Windows上运行良好，但在OS X上运行dotnet restore时，我会收到以下错误：

无法解析System.Security.Principal（>=4.0.1-rc3-23829）对于DNXCore，版本=v5.0（osx.10.11-x64）.

我的project.json看起来像这样：

{
  "version": "0.1.3-*",
  "compilationOptions": {
    "emitEntryPoint": false
  },  
  "compile": "*.cs",
  "exclude": "Platform/**/*.cs",
  "frameworks": {
    "net45": {
      "include": "Platform/DotNet45/*.cs",
      "frameworkAssemblies": {
        "System.Xml": "4.0.0.0",
        "System.Xml.Linq": "4.0.0.0",
        "System.Xml.XDocument": "4.0.0.0"
      }   
    },  
    "dnxcore50": {
      "include": "Platform/DotNetCore/*.cs",
      "dependencies": {
        "NETStandard.Library": "1.0.0-rc3-23829",
        "System.Security.Principal": "4.0.1-beta-23516",
        "System.Security.Cryptography.Hashing.Algorithms": "4.0.0-beta-23225",
        "System.Security.Cryptography.X509Certificates": "4.0.0-rc3-23829",
        "System.Xml.XDocument": "4.0.11-rc3-23829",
        "System.Xml.XmlSerializer": "4.0.11-rc3-23829"
      }   
    }   
  }
}

似乎System.Security.Principal只在Windows平台上可用，但IPrincipal的概念似乎也很通用(https://www.nuget.org/packages/System.Security.Principal/4.0.1-beta-23516)也没有将dnxcore50列为依赖项，只列出"旧".NET框架。

Answer 1

您不应该再为dnxcore50项目使用IPrincipal，而是从ClaimsPrincipal派生。您可以在此处了解更多信息：https://player.vimeo.com/video/154041158