asp.net-mvc - 当 ASP.NET 5 (vNext) 无法重定向绑定(bind)时我该怎么办？

Question

我刚刚接触 MVC 6。我安装了 VS 2015 并使用默认的 ASP.NET 5 preview MVC Web Application模板一切在本地 IIS 下运行良好。

然后我尝试使用 StructureMap 切换默认 DI 容器关注these instructions完全正确(请注意这是一篇最近的文章)。唯一的事情是我必须弄清楚要导入自己的 namespace (因为作者忽略了包含它们)，这就是我包含的内容。

我把StructureMapRegistration类和所有相关类放入一个文件中，以下是用法。

using Microsoft.Framework.DependencyInjection;
using StructureMap;
using StructureMap.Configuration.DSL.Expressions;

我将以下用法添加到 Startup.cs文件。

using StructureMap;
using StructureMap.Graph;
using System.Reflection;

我对 Startup.cs 进行了以下编辑文件。

// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
    // Add Entity Framework services to the services container.
    services.AddEntityFramework()
        .AddSqlServer()
        .AddDbContext<ApplicationDbContext>(options =>
            options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));

    // Add Identity services to the services container.
    services.AddIdentity<ApplicationUser, IdentityRole>()
        .AddEntityFrameworkStores<ApplicationDbContext>()
        .AddDefaultTokenProviders();

    // Configure the options for the authentication middleware.
    // You can add options for Google, Twitter and other middleware as shown below.
    // For more information see http://go.microsoft.com/fwlink/?LinkID=532715
    services.Configure<FacebookAuthenticationOptions>(options =>
    {
        options.AppId = Configuration["Authentication:Facebook:AppId"];
        options.AppSecret = Configuration["Authentication:Facebook:AppSecret"];
    });

    services.Configure<MicrosoftAccountAuthenticationOptions>(options =>
    {
        options.ClientId = Configuration["Authentication:MicrosoftAccount:ClientId"];
        options.ClientSecret = Configuration["Authentication:MicrosoftAccount:ClientSecret"];
    });

    // Add MVC services to the services container.
    services.AddMvc();

    //// Uncomment the following line to add Web API services which makes it easier to port Web API 2 controllers.
    //// You will also need to add the Microsoft.AspNet.Mvc.WebApiCompatShim package to the 'dependencies' section of project.json.
    //// services.AddWebApiConventions();

    //// Register application services.
    //services.AddTransient<IEmailSender, AuthMessageSender>();
    //services.AddTransient<ISmsSender, AuthMessageSender>();

    var container = new Container();
    container.Configure(x =>
    {
        x.Scan(scanning =>
        {
            scanning.Assembly(Assembly.GetExecutingAssembly());
            scanning.TheCallingAssembly();
            scanning.WithDefaultConventions();
        });

        //x.AddRegistry<WebsiteRegistry>();
    });

    // Our framework extension point
    container.Populate(services);
}

Literally, the only things I have changed from the default template are the above code changes and installing StructureMap 3.1.6.186.

using 语句抑制了所有设计时编译错误，但是当我构建时，我收到了几个其他错误。

Error CS0012 The type 'Action<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 32

Error CS0012 The type 'IDisposable' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 32

Error CS0012 The type 'Func<,>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 59

Error CS0012 The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 59

Error CS0012 The type 'Type' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 63

Error CS0012 The type 'Expression<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 63

Error CS0012 The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 63

Error CS0012 The type 'Type' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 67

Error CS0012 The type 'Expression<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Core, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 67

Error CS0012 The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 67

Error CS0012 The type 'Type' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 89

Error CS0012 The type 'IDisposable' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 89

Error CS0411 The type arguments for method 'IContainer.GetInstance(string)' cannot be inferred from the usage. Try specifying the type arguments explicitly. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 89

Error CS0012 The type 'IDisposable' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 107

Error CS0012 The type 'IDisposable' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 107

Error CS0012 The type 'IDisposable' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 120

Error CS1061 'IContainer' does not contain a definition for 'Dispose' and no extension method 'Dispose' accepting a first argument of type 'IContainer' could be found (are you missing a using directive or an assembly reference?) TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Services\StructureMapRegistration.cs 120

Error CS0012 The type 'Action<>' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Startup.cs 94

Error CS0012 The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Startup.cs 94

Error CS0012 The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Startup.cs 107

Error CS0012 The type 'IDisposable' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Startup.cs 107

Error CS0012 The type 'Object' is defined in an assembly that is not referenced. You must add a reference to assembly 'mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e, Retargetable=Yes'. TestDI3.DNX Core 5.0 f:\Users\Shad\documents\visual studio 2015\Projects\TestDI3\src\TestDI3\Startup.cs 107

该错误表明问题出在哪里 - 我需要对 mscorlib 2.0.5.0 的引用。但我已经在项目中引用了 mscorlib 4.0.0.0。

此时，在 ASP.NET < 5 中，下一步通常是向 <bindingRedirect> 添加一些绑定(bind)重定向。 web.config 文件的部分。然而，在搜索如何在 ASP.NET 5 中执行此操作后，我遇到了 this answer这表明绑定(bind)重定向应该是“完全自动的”。

这是一个错误，还是我的配置中遗漏了某些步骤导致了此错误？

配置

DNX 1.0.0-beta5

.NET Framework

x86

IIS Express

项目.json

{
    "webroot": "wwwroot",
    "userSecretsId": "aspnet5-TestDI3-1665343b-5aa5-4d08-8596-a1a536223a19",
    "version": "1.0.0-*",

    "dependencies": {
        "EntityFramework.SqlServer": "7.0.0-beta5",
        "EntityFramework.Commands": "7.0.0-beta5",
        "Microsoft.AspNet.Mvc": "6.0.0-beta5",
        "Microsoft.AspNet.Mvc.TagHelpers": "6.0.0-beta5",
        "Microsoft.AspNet.Authentication.Cookies": "1.0.0-beta5",
        "Microsoft.AspNet.Authentication.Facebook": "1.0.0-beta5",
        "Microsoft.AspNet.Authentication.Google": "1.0.0-beta5",
        "Microsoft.AspNet.Authentication.MicrosoftAccount": "1.0.0-beta5",
        "Microsoft.AspNet.Authentication.Twitter": "1.0.0-beta5",
        "Microsoft.AspNet.Diagnostics": "1.0.0-beta5",
        "Microsoft.AspNet.Diagnostics.Entity": "7.0.0-beta5",
        "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-beta5",
        "Microsoft.AspNet.Server.IIS": "1.0.0-beta5",
        "Microsoft.AspNet.Server.WebListener": "1.0.0-beta5",
        "Microsoft.AspNet.StaticFiles": "1.0.0-beta5",
        "Microsoft.AspNet.Tooling.Razor": "1.0.0-beta5",
        "Microsoft.Framework.Configuration.Abstractions": "1.0.0-beta5",
        "Microsoft.Framework.Configuration.Json": "1.0.0-beta5",
        "Microsoft.Framework.Configuration.UserSecrets": "1.0.0-beta5",
        "Microsoft.Framework.Logging": "1.0.0-beta5",
        "Microsoft.Framework.Logging.Console": "1.0.0-beta5",
        "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0-beta5",
        "structuremap": "3.1.6.186"
    },

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

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

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

Answer 1

感谢 opiants，问题似乎与项目中包含 dnxcore50 框架有关。

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

删除它解决了问题。

"frameworks": {
    "dnx451": { }
}