While open Workflow analyzer settings getting error System.NullReferenceException

Help Studio
, ,
1

i am using studio version 22.10.4
while open workflow analyzer rules in blank process i am getting this error
Error: System.NullReferenceException: Object reference not set to an instance of an object.
at UiPath.Studio.Plugin.Workflow.WorkflowAnalyzer.WorkflowAnalyzerSettingsViewModel.FilterRules(Object sender, FilterEventArgs e)
at System.Windows.Data.CollectionViewSource.WrapFilter(Object item)
at System.Windows.Data.CollectionViewSource.FilterStub.WrapFilter(Object item)
at System.Windows.Data.ListCollectionView.PrepareLocalArray()
at System.Windows.Data.ListCollectionView.RefreshOverride()
at System.Windows.Data.CollectionView.RefreshInternal()
at System.Windows.Data.CollectionView.DeferHelper.Dispose()
at System.Windows.Data.CollectionViewSource.ApplyPropertiesToView(ICollectionView view)
at System.Windows.Data.CollectionViewSource.OnForwardedPropertyChanged()
at System.Windows.Data.CollectionViewSource.add_Filter(FilterEventHandler value)
at UiPath.Studio.Plugin.Workflow.WorkflowAnalyzer.WorkflowAnalyzerSettingsViewModel.InitializeRules()
at UiPath.Studio.Plugin.Workflow.WorkflowAnalyzer.WorkflowAnalyzerSettingsViewModel.InitializeInternal()
at UiPath.Studio.Shared.MVVM.Services.DispatcherService.<>c__DisplayClass18_0.<b__0>d.MoveNext()
— End of stack trace from previous location —
at System.Threading.Tasks.Task.<>c.b__128_0(Object state)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler), HResult -2147467261

2

Hi @Mohamed_Ehab

Restart the UiPath studio and remove unused variables or argumenets or workflows if any.

3

Hi @Mohamed_Ehab

Update UiPath Studio