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我正在学习如何使用asp.net与sql数据库一起使用azure，并且很难尝试通过我收到的错误。我正在遵循的教程是 - “http://www.windowsazure.com/en-us/develop/net/tutorials/web-site-with-sql-database/#aspnetwindowsazureinfo”窗口Azure移植错误
在包管理器控制台我输入了“enable-migrations -ContextTypeName ToDoListApp.Models.ToDoDb”，并且正常工作，如下面的输出所示。
Checking if the context targets an existing database...
Code First Migrations enabled for project ToDoListApp.
然后我在“添加迁移初始”和我收到此错误类型..
“不能脚手架接下来的迁移，因为目标数据库与一个版本的Code First早于EF创建4.3并且不包含迁移历史记录表要开始对该数据库使用迁移，请确保当前模型与目标数据库兼容并执行迁移更新过程（在Visual Studio中，您可以使用Package Manager中的Update-Database命令控制台执行迁移更新过程）。“
我还使用了命令“-Verbose” - 并发现错误在目标数据库中。
Using StartUp project 'ToDoListApp'.
Using NuGet project 'ToDoListApp'.
Target database is: 'ToDoListApp.Models.ToDoDb' (DataSource: .\SQLEXPRESS, Provider: System.Data.SqlClient, Origin: Convention).
- 注：*我已经建立了在Azure上一个网站，与SQL数据库一起，并通过发布其链接到该项目中。
我已经输入错误到谷歌，有人说“添加迁移InitialMigration -IgnoreChanges”能解决这个问题，从
“http://www.woohoo.uk.com/Blog/updating - 实体框架4-1与代码的第一次迁移“
和其他人说，只是更新数据库的包管理器控制台，这似乎没有工作，我遵循微软提供的教程，一路上我收到了这个问题。
任何帮助解决这种情况将不胜感激，即时通讯使用visual studio 2012，c＃asp.net mv3框架4.5。
在我的web.config文件，我也有输入的代码
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<contexts>
<context type="ToDoListApp.Models.ToDoDb, ToDoListApp">
<databaseInitializer type="System.Data.Entity.MigrateDatabaseToLatestVersion">
<parameters>
<parameter value="ToDoDb_DatabasePublish"/>
</parameters>
</databaseInitializer>
</context>
</contexts>
</entityFramework>
我在输入 “添加迁移InitialMigration -IgnoreChanges”
和输出的误差..
System.InvalidOperationException: Failed to set database initializer of type 'System.Data.Entity.MigrateDatabaseToLatestVersion' for DbContext type 'ToDoListApp.Models.ToDoDb, ToDoListApp' specified in the application configuration. See inner exception for details. ---> System.TypeLoadException: Could not load type 'System.Data.Entity.MigrateDatabaseToLatestVersion' from assembly 'EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type)
at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName)
at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark)
at System.Type.GetType(String typeName, Boolean throwOnError)
at System.Data.Entity.Internal.ConfigFile.DatabaseInitializerElement.GetInitializerType()
at System.Data.Entity.Internal.AppConfig.InternalApplyInitializers(Boolean force)
--- End of inner exception stack trace ---
at System.Data.Entity.Internal.AppConfig.InternalApplyInitializers(Boolean force)
at System.Data.Entity.Internal.InternalContext.PerformDatabaseInitialization()
at System.Data.Entity.Internal.LazyInternalContext.<InitializeDatabase>b__4(InternalContext c)
at System.Data.Entity.Internal.RetryAction`1.PerformAction(TInput input)
at System.Data.Entity.Internal.LazyInternalContext.InitializeDatabaseAction(Action`1 action)
at System.Data.Entity.Internal.LazyInternalContext.InitializeDatabase()
at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)
at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()
at System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext()
at System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider()
at System.Linq.Queryable.Count[TSource](IQueryable`1 source)
at System.Data.Entity.Migrations.History.HistoryRepository.Exists[TContext](HistoryContextBase`1 context)
at System.Data.Entity.Migrations.History.HistoryRepository.GetPendingMigrations(IEnumerable`1 localMigrations)
at System.Data.Entity.Migrations.DbMigrator.GetPendingMigrations()
at System.Data.Entity.Migrations.Infrastructure.MigratorBase.GetPendingMigrations()
at System.Data.Entity.Migrations.Design.ToolingFacade.GetPendingMigrationsRunner.RunCore()
at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
Failed to set database initializer of type 'System.Data.Entity.MigrateDatabaseToLatestVersion' for DbContext type 'ToDoListApp.Models.ToDoDb, ToDoListApp' specified in the application configuration. See inner exception for details.