The tfs backlog page throws the following error : "TF400898: An Internal Error Occured." after upgrading to TFS 2017 RC1 from TFS 2015. All the other contents are in tact (ie Code, Build and Test). This error occurs for all the team projects in the Team Collection. Upgrade to tfs 2017 RC1 was successful without any errors.
Error logged in event viewer:
TF53010: The following error has occurred in a Team Foundation component or extension: Date (UTC): 1/30/2017 12:47:55 PM Machine: TFS01 Application Domain: /LM/W3SVC/2/ROOT/tfs-1-131302443521960468 Assembly: Microsoft.TeamFoundation.Framework.Server, Version=15.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a; v4.0.30319 Service Host: 4fc1f4bf-8005-4244-a66c-c57edf4df7f1 () Process Details: Process Name: w3wp Process Id: 18288 Thread Id: 36708 Account name: \
Detailed Message: TF30065: An unhandled exception occurred.
Web Request Details Url: http://:8080/tfs///Application/_backlogs [method: GET] User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.3; WOW64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; InfoPath.3) Headers: not available Path: /tfs///Application/_backlogs Local Request: True Host Address: fe80::a8d5:ecb7:9ff9:640c%13 User: \ [authentication type: Negotiate]
Exception Message: Object reference not set to an instance of an object. (type NullReferenceException)
Exception Stack Trace: at Microsoft.TeamFoundation.Server.WebAccess.WorkItemTracking.Common.BacklogConfigurationService.<>c__DisplayClass1_0.b__0()
at Microsoft.TeamFoundation.Framework.Server.VssRequestContextExtensions.TraceBlock[T](IVssRequestContext requestContext, Int32 enterTracepoint, Int32 leaveTracepoint, Int32 exceptionTracepoint, String area, String layer, String methodName, Func1 action)
at Microsoft.TeamFoundation.Server.WebAccess.WorkItemTracking.Common.BacklogConfigurationService.GetBacklogConfiguration(IVssRequestContext requestContext, Guid projectId, TeamFoundationTeam team, Boolean validateProcessConfig)
at Microsoft.TeamFoundation.Agile.Server.AgileSettings..ctor(IVssRequestContext requestContext, CommonStructureProjectInfo project, TeamFoundationTeam team)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.AgileAreaController.get_Settings()
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsController.get_RequestBacklogContext()
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsController.Index(String level, Nullable1 showParents)
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary2 parameters)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass42.b__41()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.b__22(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
at System.Web.Mvc.Controller.<>c__DisplayClass1d.b__18(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.b__3(IAsyncResult ar)
at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.b__3(IAsyncResult ar)
at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.b__3(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.b__3(IAsyncResult ar)
at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
