在ASP.NET 5（核心）中添加对类库项目的引用的问题 [英] Issue adding reference to class library project in ASP.NET 5 (Core)

问题描述

首先，我知道以前曾经问过类似的问题，但是现在它们已经过时了，我正在使用Visual Studio 2015 rtm和ASP.NET 5 beta 6。

Hi firstly i know vaguely similar questions have been asked before, but they are outdated now, I am using Visual Studio 2015 rtm and ASP.NET 5 beta 6.

我正在尝试在我的vnext Web应用程序中添加对普通（即非vnext）类库项目的引用。如果执行以下步骤：

I'm trying to add a reference to a normal (i.e. not vnext) class library project to my vnext web application. If I follow these steps:

1. 创建一个新的Web应用程序项目

1. Create a new web app project

从project.json中删除 dnxcore50框架

Remove the "dnxcore50" framework from project.json

为普通类库添加新项目

将类库项目手动移动到/ src文件夹中（否则，我将收到错误消息无法解析依赖MyClassLibrary1> = 1.0.0-*。）

Manually move the class library project into the /src folder (otherwise I get error "The dependency MyClassLibrary1 >= 1.0.0-* could not be resolved.")

添加对此类库的引用

现在它可以构建了，但是如果我尝试添加使用MyClassLibrary1，则表示MyClassLibrary1在当前上下文中不存在。

Now it builds OK, but if I try and add "using MyClassLibrary1" it says MyClassLibrary1 doesn't exist in current context.

如果我然后将类库更改为目标.NET 4 Client配置文件（默认为4.6）可以正常运行，但是.NET 4 full或4.5无法运行。我需要将其设置为4.5或更高版本，因为我需要引用各种需要此功能的软件包。理想情况下，所有内容都只针对4.6。

If I then change the class library to target .NET 4 Client profile (by default it was 4.6) it does work correctly, however .NET 4 full or 4.5 does not work. I need it to be 4.5 or higher as I need to reference various packages that require this. Ideally everything would just target 4.6.

这是我的project.json文件：

This is my project.json file:

{
  "webroot": "wwwroot",
  "userSecretsId": "aspnet5-WebApplication2-6767111e-0eba-42a4-9d68-4b6c20767518",
  "version": "1.0.0-*",

  "dependencies": {
    "EntityFramework.SqlServer": "7.0.0-beta6",
    "EntityFramework.Commands": "7.0.0-beta6",
    "Microsoft.AspNet.Mvc": "6.0.0-beta6",
    "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-beta6",
    "Microsoft.AspNet.Authentication.Cookies": "1.0.0-beta6",
    "Microsoft.AspNet.Authentication.Facebook": "1.0.0-beta6",
    "Microsoft.AspNet.Authentication.Google": "1.0.0-beta6",
    "Microsoft.AspNet.Authentication.MicrosoftAccount": "1.0.0-beta6",
    "Microsoft.AspNet.Authentication.Twitter": "1.0.0-beta6",
    "Microsoft.AspNet.Diagnostics": "1.0.0-beta6",
    "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-beta6",
    "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-beta6",
    "Microsoft.AspNet.Server.IIS": "1.0.0-beta6",
    "Microsoft.AspNet.Server.WebListener": "1.0.0-beta6",
    "Microsoft.AspNet.StaticFiles": "1.0.0-beta6",
    "Microsoft.AspNet.Tooling.Razor": "1.0.0-beta6",
    "Microsoft.Framework.Configuration.Abstractions": "1.0.0-beta6",
    "Microsoft.Framework.Configuration.Json": "1.0.0-beta6",
    "Microsoft.Framework.Configuration.UserSecrets": "1.0.0-beta6",
    "Microsoft.Framework.Logging": "1.0.0-beta6",
    "Microsoft.Framework.Logging.Console": "1.0.0-beta6",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-beta6"
  },

  "commands": {
    "web": "Microsoft.AspNet.Hosting --config hosting.ini",
    "ef": "EntityFramework.Commands"
  },

  "frameworks": {
    "dnx451": {
      "dependencies": {
        "MyClassLibrary1": "1.0.0-*"
      }

    }
  },

  "exclude": [
    "wwwroot",
    "node_modules",
    "bower_components"
  ],
  "publishExclude": [
    "node_modules",
    "bower_components",
    "**.xproj",
    "**.user",
    "**.vspscc"
  ],
  "scripts": {
    "prepublish": [ "npm install", "bower install", "gulp clean", "gulp min" ]
  }
}

还有我的global.json文件：

And my global.json file:

{
  "projects": [
    "src",
    "test",
    "wrap"
  ],
  "sdk": {
    "version": "1.0.0-beta6"
  }
}

推荐答案

这是我使用beta6进行的操作（ UPDATE：RC1 UPDATE 1仍然有效）。

This is how I did it using beta6 (UPDATE: It's still valid for the RC1 UPDATE 1).

1. 从您的project.json中删除框架=> dnxcore（无论如何，您都不能使用完整的.net类库将其定位为目标）


2. 在目标项目中，右键单击引用 =>添加引用

导航并选择要添加的引用dll。

这会将引用条目添加到您的 project.json 文件。
在后台将dll复制到解决方案中的/ lib目录中，并在/ wrap文件夹中创建仅包含project.json文件的 包装器项目。包装项目记录在这里（虽然不够好）： https ：//github.com/aspnet/Home/wiki/Project.json-file#bin-syntax-wrapping-a-dll

This will add a reference entry to your project.json file. Behind the scenes the dll is copied over to /lib directory in your solution and a "wrapper project" with only a project.json file is created in /wrap folder. The wrapper project is documented here (not well enough though): https://github.com/aspnet/Home/wiki/Project.json-file#bin-syntax-wrapping-a-dll

就是这样！我刚刚测试了这种情况。希望这会有所帮助。

That's it! I've just tested this scenario. Hope this helps.

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