“/”应用程序中的服务器错误。

集合已修改；可能无法执行枚举操作。

说明: 执行当前 Web 请求期间，出现未经处理的异常。请检查堆栈跟踪信息，以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.InvalidOperationException: 集合已修改；可能无法执行枚举操作。

源错误:

执行当前 Web 请求期间生成了未经处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。

堆栈跟踪: 


[InvalidOperationException: 集合已修改；可能无法执行枚举操作。]
   System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource) +56
   System.Collections.Generic.Enumerator.MoveNext() +13883238
   System.Data.Objects.ObjectStateManager.GetEntityEntriesForDetectChanges(Dictionary`2 entityStore, List`1& entries) +243
   System.Data.Objects.ObjectStateManager.GetEntityEntriesForDetectChanges() +109
   System.Data.Objects.ObjectStateManager.DetectChanges() +29
   System.Data.Entity.Internal.InternalContext.DetectChanges(Boolean force) +93
   System.Data.Entity.Internal.Linq.InternalSet`1.Find(Object[] keyValues) +47
   Jngt.DAL.ArticleDAL.GetModel(String id) in F:\3.孔子人才网项目\3.Jngt2024\Jngt\Jngt.DAL\ArticleDAL.cs:34
   Jngt.Web.Controllers.IndexController.ViewArticle(String arId) in F:\3.孔子人才网项目\3.Jngt2024\Jngt\Jngt.Web\Controllers\IndexController.cs:651
   lambda_method(Closure , ControllerBase , Object[] ) +139
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.Async.<>c.b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
   System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +71
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +69
   System.Web.Mvc.Async.AsyncInvocationWithFilters.b__11_0() +72
   System.Web.Mvc.Async.<>c__DisplayClass11_1.b__2() +386
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +69
   System.Web.Mvc.Async.<>c__DisplayClass3_6.b__3() +50
   System.Web.Mvc.Async.<>c__DisplayClass3_1.b__5(IAsyncResult asyncResult) +186
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +59
   System.Web.Mvc.<>c.b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +26
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +74
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +36
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +59
   System.Web.Mvc.<>c.b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +41
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +399
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +137

版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.6.1055.0
Baidu
sogou