c# - 测试期间BreezeJS DocCode失败

使用VS 2013运行DocCode示例的最新示例代码。下面出现以下错误。有什么想法吗？我的目标是调试localstorage和IndexedDB，并在此测试期间查看调试器中发生的情况。我需要提供概念证明，并确保BreezeJS可以正确使用IndexedDB存储。

System.Exception未被用户代码处理的HResult = -2146233088 Message =存储更新，插入或删除语句影响了意外的行数（0）。自实体加载后，实体可能已被修改或删除。刷新ObjectStateManager条目。来源= Breeze.ContextProvider.EF6 堆栈跟踪：在Breeze.ContextProvider.EF6.EFContextProvider 1.SaveChangesCore(SaveWorkState saveWorkState) at Breeze.ContextProvider.ContextProvider.OpenAndSave(SaveWorkState saveWorkState) at Breeze.ContextProvider.ContextProvider.SaveChanges(JObject saveBundle, TransactionSettings transactionSettings) at DocCode.DataAccess.TodosRepository.SaveChanges(JObject saveBundle) in c:\Users\username\Downloads\breeze-runtime-plus-1.4.12\Samples\net\DocCode\DocCode.DataAccess.EF\TodosRepository.cs:line 27 at DocCode.Controllers.TodosController.SaveChanges(JObject saveBundle) in c:\Users\username\Downloads\breeze-runtime-plus-1.4.12\Samples\net\DocCode\DocCode\Controllers\TodosController.cs:line 30 at lambda_method(Closure , Object , Object[] ) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.<>c__DisplayClass10.<GetExecutor>b__9(Object instance, Object[] methodParameters) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ActionExecutor.Execute(Object instance, Object[] arguments) at System.Web.Http.Controllers.ReflectedHttpActionDescriptor.ExecuteAsync(HttpControllerContext controllerContext, IDictionary 2个参数，CancellationToken cancellationToken） InnerException：System.Data.Entity.Infrastructure.DbUpdateConcurrencyException 的HResult = -2146233087 Message =存储更新，插入或删除语句影响了意外的行数（0）。自实体加载后，实体可能已被修改或删除。刷新ObjectStateManager条目。来源=的EntityFramework 堆栈跟踪：在System.Data.Entity.Internal.InternalContext.SaveChanges（）在System.Data.Entity.Internal.LazyInternalContext.SaveChanges（）在System.Data.Entity.DbContext.SaveChanges（）在Breeze.ContextProvider.EF6.EFContextProvider 1.SaveChangesCore(SaveWorkState saveWorkState) InnerException: System.Data.Entity.Core.OptimisticConcurrencyException HResult=-2146233087 Message=Store update, insert, or delete statement affected an unexpected number of rows (0). Entities may have been modified or deleted since entities were loaded. Refresh ObjectStateManager entries. Source=EntityFramework StackTrace: at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.ValidateRowsAffected(Int64 rowsAffected, UpdateCommand source) at System.Data.Entity.Core.Mapping.Update.Internal.UpdateTranslator.Update() at System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.<Update>b__2(UpdateTranslator ut) at System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update[T](T noChangesResult, Func 2 updateFunction，Boolean throwOnClosedConnection）在System.Data.Entity.Core.EntityClient.Internal.EntityAdapter.Update（Boolean throwOnClosedConnection）在System.Data.Entity.Core.Objects.ObjectContext.b__33（）在System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction [T]（Func 1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess) at System.Data.Entity.Core.Objects.ObjectContext.SaveChangesToStore(SaveOptions options, IDbExecutionStrategy executionStrategy) at System.Data.Entity.Core.Objects.ObjectContext.<>c__DisplayClass28.<SaveChanges>b__25() at System.Data.Entity.Infrastructure.DefaultExecutionStrategy.Execute[TResult](Func 1操作）在System.Data.Entity.Core.Objects.ObjectContext.SaveChanges（SaveOptions选项）在System.Data.Entity.Internal.InternalContext.SaveChanges（） InnerException：

测试期间BreezeJS DocCode失败

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