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

Question

我正在使用VS2015社区,我安装了.NET 4.6.01040,并按照这些说明安装了ASP.NET 5.

我想开始将一个站点从MVC5迁移到MVC6所带来的所有其他更新,所以我开始使用包含我的Data模型的Entity Class库项目.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",
  }
}

我改变了框架类型"net451","net461"因为我认为那是问题所在,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

关于如何使用新项目类型的任何想法？

Answer 1

因为从答案中我不清楚需要什么,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",
  }
}

Answer 2

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