Asp.net mvc 5 '；System.ComponentModel.DataAnnotations.Schema.IndexAttribute'；

我在尝试用MVC5设置Asp.Net Identity 2.1时遇到了一个问题，并且安装了entity Framework 6.1.2库。但是，当我运行应用程序并尝试使用它来注册一个用户时，我会遇到以下错误：

Could not load type 'System.ComponentModel.DataAnnotations.Schema.IndexAttribute' from assembly 'EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.

[TypeLoadException: Could not load type 'System.ComponentModel.DataAnnotations.Schema.IndexAttribute' from assembly 'EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.]    Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext`6.OnModelCreating(DbModelBuilder modelBuilder) +0    System.Data.Entity.Internal.LazyInternalContext.CreateModelBuilder() +375    System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) +15    System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input) +123    System.Data.Entity.Internal.LazyInternalContext.InitializeContext() +602    System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +18    System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +53    System.Data.Entity.Internal.Linq.InternalSet`1.Include(String path) +18    System.Data.Entity.Infrastructure.DbQuery`1.Include(String path) +66    System.Data.Entity.QueryableExtensions.Include(IQueryable`1 source, String path) +130    System.Data.Entity.QueryableExtensions.Include(IQueryable`1 source, Expression`1 path) +181    Microsoft.AspNet.Identity.EntityFramework.UserStore`6.GetUserAggregateAsync(Expression`1 filter) +609    Microsoft.AspNet.Identity.EntityFramework.UserStore`6.FindByNameAsync(String userName) +1072    Microsoft.AspNet.Identity.UserManager`2.FindByNameAsync(String userName) +178    Microsoft.AspNet.Identity.Owin.<PasswordSignInAsync>d__29.MoveNext() +217    System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93    System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52    System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +24    TestID.Controllers.<Login>d__2.MoveNext() in f:\CodeSamples\IDClaims\TestID\TestID\Controllers\AccountController.cs:78    System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +93    System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +52    System.Runtime.CompilerServices.TaskAwaiter.GetResult() +21    System.Threading.Tasks.TaskHelpersExtensions.ThrowIfFaulted(Task task) +61    System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult) +114    System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeAsynchronousActionMethod>b__36(IAsyncResult asyncResult) +66    System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +47    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +136    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +49    System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +117    System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +323    System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult) +44    System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +47    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +136    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +102    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +50    System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +72    System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +185    System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +42    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +133    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +56    System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +40    System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +34    System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +70    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40    System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +44    System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller) +39    System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +62    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40    System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +39    System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +39    System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +39    System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +70    System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +139    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +59    System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40    System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +40    System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38    System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +9657896    System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

但是仍然会遇到同样的问题，我使用ASP.Net Identity 2.1.0和Entity Framework 6.1.2，package.config指向正确的版本，引用指向正确的包目录，项目引用指向Entity 6.1.2的正确引用目录。嗯

即使进入对象浏览器，我也可以在

System.ComponentModel.Data.Annotation.Schema中看到
IndexAttribute
方法。

在我看来，有一件事确实很奇怪，那就是在.NET Reflector对象浏览器中，实体框架程序集看起来像6.0.0.0，但不知道为什么所有引用都是6.1.2

---

如有任何帮助，将不胜感激O）

不确定这是否解决了我的问题，或者是否仍然存在问题，我从CodePlex下载了示例文件；并在本地打开项目，还原站点的包，然后在本地运行应用程序，因为这使用的是Entity 6.1.2，identity有效。然后，我再次运行了一个新的测试应用程序，首先安装了EntityFramework6.1.2，然后测试了我的应用程序，它似乎正常工作。我真的无法回答为什么这一切突然开始起作用，有什么想法吗？

C:\Users\[username]\AppData\Local\Temp\Temporary ASP.NET Files\ %SystemRoot%\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\ %SystemRoot%\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\ %SystemRoot%\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\ %SystemRoot%\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files\