解决ASP.Net 5中的引用,"IDisposable是......未引用"

Question

我做了以下事情:

• 创建了一个新的Web.Api项目:"WFW3".我在ASP.Net 5下使用了"Web API"模板.
• 我再次使用ASP.Net 5创建了一个新的类库"Foo.Domain" .
• 我在API项目中添加了对它的引用.
• 我从Nuget 安装了Neo4j.Driver(一个可移植的类库)到Foo.Domain项目中.Neo4j的-的NuGet

到目前为止,一切似乎都很好.一切都编译好了,虽然没有做任何事情.

在Foo.Domain中,我创建了一个类,该方法在"using"语句中引用了GraphDatabase类.这就是它破产的地方.

我收到此错误消息(以及其他类似的消息):

"IDisposable"类型在未引用的程序集中定义.您必须添加对程序集'System.Runtime,Version = 4.0.0.0,Culture = neutral,PublicKeyToken = b03f5f7f11d50a3a'的引用.Foo.Domain..NET Framework 4.5.1 C:\ dev\WFW3\src\Foo.Domain\FooRepository.cs

我的理解是ASP.Net 5中没有绑定重定向.这是正确的吗？如何解决此问题而不引用正确版本的System.Runtime？在System.Runtime 中找到的项目可供我使用.它似乎是在Neo4j.Driver.V1程序集中寻找旧版本的System.Runtime.我尝试了这里找到的解决方案(Nathan的回答),但后来它开始抱怨我试图导入两种不同类型的Runtime库,我需要删除一个.但是我应该删除哪一个,以及如何删除？

API project.json

{
  "version": "1.0.0-*",
  "compilationOptions": {
    "emitEntryPoint": true
  },

  "dependencies": {
    "Foo.Domain": "1.0.0-*",
    "Microsoft.ApplicationInsights.AspNet": "1.0.0-rc1",
    "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
    "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
    "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging.Console": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging.Debug": "1.0.0-rc1-final"
  },

  "commands": {
    "web": "Microsoft.AspNet.Server.Kestrel"
  },

  "frameworks": {
    "dnx451": { },
    "dnxcore50": { }
  },

  "exclude": [
    "wwwroot",
    "node_modules"
  ],
  "publishExclude": [
    "**.user",
    "**.vspscc"
  ]
}

Foo.Domain project.json

{
  "version": "1.0.0-*",
  "compilationOptions": {
    "emitEntryPoint": true
  },

  "dependencies": {
    "Foo.Domain": "1.0.0-*",
    "Microsoft.ApplicationInsights.AspNet": "1.0.0-rc1",
    "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc1-final",
    "Microsoft.AspNet.Mvc": "6.0.0-rc1-final",
    "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc1-final",
    "Microsoft.AspNet.StaticFiles": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc1-final",
    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging.Console": "1.0.0-rc1-final",
    "Microsoft.Extensions.Logging.Debug": "1.0.0-rc1-final"
  },

  "commands": {
    "web": "Microsoft.AspNet.Server.Kestrel"
  },

  "frameworks": {
    "dnx451": { },
    "dnxcore50": { }
  },

  "exclude": [
    "wwwroot",
    "node_modules"
  ],
  "publishExclude": [
    "**.user",
    "**.vspscc"
  ]
}

FooRepository代码(在Foo.Domain中):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Neo4j.Driver.V1;

namespace Foo.Domain
{
   public class FooRepository: IFooRepository
    {

        public Foo GetById(string Id)
        {
            // The next lines inside the 'using' are getting the error.
            using (var driver = GraphDatabase.Driver("http://localhost:7474/"))
            using (var session = driver.Session())
            {
                var result = session.Run("CREATE (n) RETURN n");
            }
            return null;
        }
    }
}

Answer 1

I've found my solution. In addition to removing the 'dnxcore50' framework from the root, web.api library as @Nkosi suggested, I needed to add a 'frameworkAssemblies' section in my class library. The following change to the 'Foo.Domain' library got the solution compiling and behaving as expected.

{
  "version": "1.0.0-*",
  "description": "Foo.Domain Class Library",
  "authors": [ "Malcolm" ],
  "tags": [ "" ],
  "projectUrl": "",
  "licenseUrl": "",
  "frameworks": {
    "net451": {
      "frameworkAssemblies": {
        "System.Runtime": "4.0.10.0"
      }
    }
  },
  "dependencies": {
    "Neo4j.Driver": "1.0.0"
  }
}