using TWA when i click on backlog items faconig below issue
migrated from tfs 2010 to tfs 2013
TF53010: The following error has occurred in a Team Foundation component or extension:
Date (UTC): 8/31/2015 9:08:39 AM
Machine: TFSServer
Application Domain: /LM/W3SVC/2/ROOT/tfs-1-130854731741843393
Assembly: Microsoft.TeamFoundation.Framework.Server, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a; v4.0.30319
Service Host: f362257a-1e4f-42ee-b539-3a2a7a907357 (Collectionname)
Process Details:
Process Name: w3wp
Process Id: 2332
Thread Id: 3172
Account name: XXX
Detailed Message: TF30065: An unhandled exception occurred.
Web Request Details
Url: http://tfsserver:8080/tfs/DemoCollection/DEMOTP/_api/_backlog/backlogPayload?__v=5 [method: GET]
User Agent: Mozilla/5.0 (Windows NT 6.1; rv:40.0) Gecko/20100101 Firefox/40.0
Headers: Connection=keep-alive&Accept=application%2fjson%2c+text%2fjavascript%2c+*%2f*%3b+q%3d0.01&Accept-Encoding=gzip%2c+deflate&Accept-Language=en-US%2cen%3bq%3d0.5&Cookie=__RequestVerificationToken_L3Rmcw2%3d9ujP0DhLZnbsapSsNXxuo1EFhHrwY0pHqFRj_UvTmRqok9QCPikFkzHV8FFRGtpBMSSZvJXnxKDdgU1tg3FEKtXDodM1%3b+__RequestVerificationToken24ed33da3-adc5-48b1-a01e-55794e646f1a%3d9ujP0DhLZnbsapSsNXxuo1EFhHrwY0pHqFRj_UvTmRqok9QCPikFkzHV8FFRGtpBMSSZvJXnxKDdgU1tg3FEKtXDodM1&Host=mad-rfg-dvtfsa1%3a8080&Referer=http%3a%2f%2fmad-rfg-dvtfsa1%3a8080%2ftfs%2fDemoCollection%2fDEMOTP%2f_backlogs&User-Agent=Mozilla%2f5.0+(Windows+NT+6.1%3b+rv%3a40.0)+Gecko%2f20100101+Firefox%2f40.0&X-Requested-With=XMLHttpRequest
Path: /tfs/DemoCollection/DEMOTP/_api/_backlog/backlogPayload
Local Request: False
Host Address: host
User: username [authentication type: NTLM]
Exception Message: Method 'GetVariableValue' in type 'Microsoft.TeamFoundation.WorkItemTracking.Server.ServerWiqlAdapterHelper' from assembly 'Microsoft.TeamFoundation.WorkItemTracking.Server, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
does not have an implementation. (type TypeLoadException)
Exception Stack Trace: at Microsoft.TeamFoundation.WorkItemTracking.Server.QueryInfo.Initialize(TeamFoundationRequestContext requestContext, String wiql, IDictionary context, Boolean dayPrecision)
at Microsoft.TeamFoundation.Server.WebAccess.WorkItemTracking.QueryResultModel..ctor(TeamFoundationRequestContext requestContext, String wiql, IDictionary`2 fieldWidthMap, Boolean includePayload, Boolean includeEditInfo, Boolean runQuery, IDictionary
queryContext, IEnumerable`1 requiredColumns)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsBacklogActionHelper._CreateProductBacklogQueryResults(String wiql, IDictionary`2 map, ProductBacklogGridOptions options)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsBacklogActionHelper.CreateQueryResultsModel(String wiql, IDictionary`2 map, ProductBacklogGridOptions options)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsBacklogActionHelper.GetProductBacklogResultsModel(ColumnPreferences columnPreferences, IEnumerable`1 additionalFields)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsBacklogActionHelper.GetBacklogViewModel(IEnumerable`1 additionalFields)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.BacklogsBacklogActionHelper.GetBacklogPayload(IEnumerable`1 additionalFields)
at Microsoft.TeamFoundation.Server.WebAccess.Agile.ApiBacklogController.BacklogPayload(String hubPluralName, String filterPluralName, String[] additionalFields)
at lambda_method(Closure , ControllerBase , Object[] )
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass42.<BeginInvokeSynchronousActionMethod>b__41()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.<BeginInvokeAction>b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult)
at System.Web.Mvc.Controller.<>c__DisplayClass1d.<BeginExecuteCore>b__18(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>b__3(IAsyncResult ar)
at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.MvcHandler.<>c__DisplayClass8.<BeginProcessRequest>b__3(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncResultWrapper.<>c__DisplayClass4.<MakeVoidDelegate>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)
Please provide solution to access backlog items
Regards,
Manjunath