Portal Timeout on specific reports. Debugging resource strings are unavailable

Summary:

When clicking on a report to launch in Portal, there is an error message like the one below. The error message may appear after you run the report as well.

Symptoms:

Portal Version: 4.5.30401.1057

Message: [Arg_NullReferenceException]

Arguments:

Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.1.41212.00&File=mscorlib.dll&Key=Arg_NullReferenceException

Details:

System.NullReferenceException: [Arg_NullReferenceException]

Arguments:

Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.1.41212.00&File=mscorlib.dll&Key=Arg_NullReferenceException

   at OneStop.Portal.ViewModels.ParameterCheckListViewModel.

   at System.Linq.Enumerable.FirstOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)

   at OneStop.Portal.ViewModels.ParameterCheckListViewModel.

   at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()

   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()

   at OneStop.Portal.ViewModels.ParameterCheckListViewModel.OnLookupFinished()

   at OneStop.Portal.ViewModels.ParameterCheckListViewModel.set_Value(Object value)

   at OneStop.Portal.ViewModels.ReportViewModel.SelectHistoryItem(HistoryItemViewModel historyItem)

   at OneStop.Portal.ViewModels.ReportViewModel.

   at OneStop.Portal.ViewModels.ReportHistoryViewModel.OnSelectedItemChanged()

   at OneStop.Portal.ViewModels.ReportHistoryViewModel.set_SelectedItem(HistoryItemViewModel value)

   at OneStop.Portal.ViewModels.ReportHistoryViewModel.SelectFirstRecent()

   at OneStop.Portal.ViewModels.ReportViewModel.

   at OneStop.Portal.Services.ReportService.

Cause:

If only a select number of reports appear to error out, the cause of the error is from the parameter type of the report parameters. Most likely the parameter type is set to ‘check list’.

Resolution:

Change the parameter type to any other ones like ‘lookup edit’.

Afterward, save and reload the report onto the Portal and test to make sure it runs.

Properties:

Applies To:

• Web Portal 4.x