实体框架 - 所有列都无效

Question

这是我尝试在本地ASP.NET MVC项目上注册帐户时遇到的错误。当我尝试将默认帐户管理器移动到我的主DbContext时，这一切都开始了。当它仍处于＆＃34; DefaultConnection时，它工作正常。＆＃34;

Exception Details: System.Data.SqlClient.SqlException: Invalid column name 'UserName'.
Invalid column name 'UserName'.
Invalid column name 'Email'.
Invalid column name 'EmailConfirmed'.
Invalid column name 'PasswordHash'.
Invalid column name 'SecurityStamp'.
Invalid column name 'PhoneNumber'.
Invalid column name 'PhoneNumberConfirmed'.
Invalid column name 'TwoFactorEnabled'.
Invalid column name 'LockoutEndDateUtc'.
Invalid column name 'LockoutEnabled'.
Invalid column name 'AccessFailedCount'.
Invalid column name 'UserName'.

错误的来源是来自默认AccountController的此语句：

var result = await UserManager.CreateAsync(user, model.Password);

这就是我的表格。我已经摆弄了很长时间; IdentityUser并不总是存在，现在它似乎已经采取了＃34; AspNetUsers的专栏名称......很奇怪。

这是我的DbContext文件

public class MainContext : IdentityDbContext<ApplicationUser>
    {
        public MainContext() : base("MainContext")
        {
            Database.SetInitializer(new DropCreateDatabaseAlways<MainContext>());
        }

        public DbSet<Story> Stories { get; set; }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();

            base.OnModelCreating( modelBuilder );
            modelBuilder.Entity<IdentityUser>().HasKey( t => t.Id );
            modelBuilder.Entity<IdentityUserLogin>().HasKey( l => new {l.UserId, l.ProviderKey, l.LoginProvider} );
            modelBuilder.Entity<IdentityRole>().HasKey( r => r.Id );
            modelBuilder.Entity<IdentityUserRole>().HasKey( r => new { r.RoleId, r.UserId } );

        }

    public DbSet<ViewModels.StoryDetailsVm> StoryViewModels { get; set; }

    public DbSet<ViewModels.StoryEditVm> StoryEditVMs { get; set; }
}

这是我的IdentityModels文件

public class ApplicationUser : IdentityUser
    {
        public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
        {
            // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
            var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
            // Add custom user claims here
            return userIdentity;
        }
    }

    public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
    {
        public ApplicationDbContext()
            : base("MainContext", throwIfV1Schema: false)
        {
        }

        public static ApplicationDbContext Create()
        {
            return new ApplicationDbContext();
        }
    }

我一直试图解决这个问题6个小时。非常感谢我能得到的任何帮助。对所有这些代码道歉，我不知道问题出在哪里。

堆栈跟踪

[SqlException (0x80131904): Invalid column name 'UserName'.
Invalid column name 'UserName'.
Invalid column name 'Email'.
Invalid column name 'EmailConfirmed'.
Invalid column name 'PasswordHash'.
Invalid column name 'SecurityStamp'.
Invalid column name 'PhoneNumber'.
Invalid column name 'PhoneNumberConfirmed'.
Invalid column name 'TwoFactorEnabled'.
Invalid column name 'LockoutEndDateUtc'.
Invalid column name 'LockoutEnabled'.
Invalid column name 'AccessFailedCount'.
Invalid column name 'UserName'.]
   System.Data.SqlClient.<>c.<ExecuteDbDataReaderAsync>b__167_0(Task`1 result) +870314
   System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke() +77
   System.Threading.Tasks.Task.Execute() +49
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Core.EntityClient.Internal.<ExecuteStoreCommandsAsync>d__c.MoveNext() +249

[EntityCommandExecutionException: An error occurred while executing the command definition. See the inner exception for details.]
   System.Data.Entity.Core.EntityClient.Internal.<ExecuteStoreCommandsAsync>d__c.MoveNext() +334
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Core.Objects.Internal.<ExecuteAsync>d__0`1.MoveNext() +1515
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Utilities.CultureAwaiter`1.GetResult() +59
   System.Data.Entity.Core.Objects.<ExecuteInTransactionAsync>d__3d`1.MoveNext() +862
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.SqlServer.<ExecuteAsyncImplementation>d__9`1.MoveNext() +358
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Utilities.CultureAwaiter`1.GetResult() +59
   System.Data.Entity.Core.Objects.<GetResultsAsync>d__e.MoveNext() +632
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Utilities.CultureAwaiter`1.GetResult() +59
   System.Data.Entity.Internal.<FirstMoveNextAsync>d__0.MoveNext() +261
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Data.Entity.Infrastructure.<FirstOrDefaultAsync>d__25`1.MoveNext() +349
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28
   Microsoft.AspNet.Identity.CultureAwaiter`1.GetResult() +75
   Microsoft.AspNet.Identity.EntityFramework.<GetUserAggregateAsync>d__6c.MoveNext() +682
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28
   Microsoft.AspNet.Identity.CultureAwaiter`1.GetResult() +75
   Microsoft.AspNet.Identity.<ValidateUserName>d__4.MoveNext() +607
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26
   Microsoft.AspNet.Identity.CultureAwaiter.GetResult() +44
   Microsoft.AspNet.Identity.<ValidateAsync>d__0.MoveNext() +235
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28
   Microsoft.AspNet.Identity.CultureAwaiter`1.GetResult() +75
   Microsoft.AspNet.Identity.<CreateAsync>d__0.MoveNext() +422
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28
   Microsoft.AspNet.Identity.CultureAwaiter`1.GetResult() +75
   Microsoft.AspNet.Identity.<CreateAsync>d__d.MoveNext() +475
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter`1.GetResult() +28
   fcon.Controllers.<Register>d__15.MoveNext() in C:\Users\G\Documents\Visual Studio 2015\Projects\fcon\fcon\Controllers\AccountController.cs:157
   System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) +92
   System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) +58
   System.Runtime.CompilerServices.TaskAwaiter.GetResult() +26
   System.Threading.Tasks.TaskHelpersExtensions.ThrowIfFaulted(Task task) +42
   System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult) +73
   System.Web.Mvc.Async.<>c__DisplayClass37.<BeginInvokeAsynchronousActionMethod>b__36(IAsyncResult asyncResult) +37
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +27
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +58
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +68
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +34
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +69
   System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +230
   System.Web.Mvc.Async.<>c__DisplayClass33.<BeginInvokeActionMethodWithFilters>b__32(IAsyncResult asyncResult) +27
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +27
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +58
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +68
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34
   System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +42
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +124
   System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +27
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +58
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +30
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +29
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +27
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +48
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +58
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +30
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +21
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +32
   System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller) +26
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +40
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +58
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +30
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +21
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +29
   System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +24
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +27
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +48
   System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +58
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +30
   System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +21
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +29
   System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +23
   System.Web.CallHandlerExecutionStep.OnAsyncHandlerCompletion(IAsyncResult ar) +129

Google的关键字：DropCreateDatabaseAlways手动删除数据库旧模型

Answer 1

我找到了实际的解决方案。这是有史以来最令人愤怒的错误之一。实体似乎留下了手动删除数据库的卷影副本。事实上，我的列不会让我感到困惑 - 因为我启用了DropCreateDatabaseAlways - 我非常怀疑这是因为Entity一直指的是阴影副本。

这与this bug出现的原因相同。如果旧数据库已被删除，实体无法附加到具有相同名称和与旧数据库相同位置的数据库 - 因为旧数据库仍然存在。

解决方案：下载SSMS，找到卷影副本并将其删除。如果您手动删除数据库一次，则存在复杂的空间。