IEnumerable<> 在未引用的程序集中定义 - 新 NuGet Class 库项目

Question

我正在使用 VS2015 Community，我安装了 .NET 4.6.01040，我按照 these 说明安装 ASP.NET 5.

我想开始将站点从 MVC5 迁移到 MVC6 以及它附带的所有其他更新，因此我从包含我的数据模型的实体 Class 库项目开始。这是我的 project.json 文件的样子：

{
  "version": "1.0.0-*",
  "description": "test.Entities Class Library",
  "authors": [ "me" ],
  "tags": [ "" ],
  "projectUrl": "",
  "licenseUrl": "",
  "frameworks": {
    "net461": {
      "dependencies": { "System.Runtime": "4.0.0.0" }
    },
    "dotnet5.4": {
      "dependencies": {
        "Microsoft.CSharp": "4.0.1-beta-23516",
        "System.Runtime": "4.0.21-beta-23516",
        "System.Linq": "4.0.1-beta-23516"
        "System.Collections": "4.0.11-beta-23516",
        "System.Threading": "4.0.11-beta-23516"
      }
    }
},
  "dependencies": {
    "EntityFramework.Core": "7.0.0-rc1-final",
  }
}

我将框架类型从 "net451" 更改为 "net461" 因为我认为这是问题所在，我也尝试添加对依赖项的引用，但没有运气......

错误发生在这里：

[NotMapped]
public decimal TotalOrders => Math.Round(Orders.Where(x => x.Code.StartsWith("5")
                             .Sum(x => x.Amount),MidpointRounding.AwayFromZero);

完整的错误是：

CS0012  The type 'IEnumerable<>' 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'.    test.Entity..NET Framework 4.6

知道如何使用新的项目类型进行这项工作吗？

Answer 1

net461 目标框架名称 (TFM) 表示完整的桌面 .NET Framework，如果您想从此框架引用 System.Runtime，则需要将 "System.Runtime": "4.0.0.0" 条目移动到frameworkAssemblies节点.

Answer 2

因为我从答案中不清楚需要什么，所以我会在这里提供....

{
  "version": "1.0.0-*",
  "description": "test.Entities Class Library",
  "authors": [ "me" ],
  "tags": [ "" ],
  "projectUrl": "",
  "licenseUrl": "",
  "frameworks": {
      "net461": {
      "dependencies": { "System.Runtime": "4.0.0.0" },

      "frameworkAssemblies": {
         "System.Runtime": "4.0.10.0"
      }

    },
    "dotnet5.4": {
       "dependencies": {
       "Microsoft.CSharp": "4.0.1-beta-23516",
       "System.Runtime": "4.0.21-beta-23516",
       "System.Linq": "4.0.1-beta-23516"
       "System.Collections": "4.0.11-beta-23516",
       "System.Threading": "4.0.11-beta-23516"
     }
   }
  },
   "dependencies": {
    "EntityFramework.Core": "7.0.0-rc1-final",
  }
}

IEnumerable<> 在未引用的程序集中定义 - 新 NuGet Class 库项目

IEnumerable<> is defined in an assembly that is not referenced - new NuGet Class Library project

c#

asp.net

asp.net-mvc

asp.net-core-mvc

asp.net-core