RSRP-288901: Object reference not set to an instance of an object.

  at JetBrains.VsIntegration.ProjectModel.VSSolutionManager.<>c__DisplayClass34.<>c__DisplayClass37.<OnVsSelectionChanged>b__31(VsHierarchyItem hitem) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\ProjectModel\VSSolutionManager.cs:line 658
     at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext()
     at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
     at JetBrains.Util.CollectionUtil.ForEach[T](IEnumerable`1 collection, Action`1 action) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\Collections\CollectionUtil.cs:line 1555
     at JetBrains.VsIntegration.ProjectModel.VSSolutionManager.<>c__DisplayClass34.<OnVsSelectionChanged>b__30() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\ProjectModel\VSSolutionManager.cs:line 657
     at JetBrains.Application.IShellLocksEx.ExecuteWithReadLock(IShellLocks thіs, Action F) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Shell\src\Threading\ShellLocks.cs:line 989
     at JetBrains.Application.IShellLocksEx.<>c__DisplayClass4.<ExecuteOrQueueReadLock>b__3() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Shell\src\Threading\ShellLocks.cs:line 813
     at JetBrains.Threading.ReentrancyGuard.Execute(String name, Action action) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\Concurrency\ReentrancyGuard.cs:line 266

  at JetBrains.Threading.ReentrancyGuard.ExecuteOrQueue(String name, Action action) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\Concurrency\ReentrancyGuard.cs:line 304
     at JetBrains.Threading.IThreadingEx.ExecuteOrQueue(IThreading thіs, String name, Action action) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Shell\src\Threading\Invocator.cs:line 218
     at JetBrains.Application.IShellLocksEx.ExecuteOrQueueReadLock(IShellLocks thіs, String name, Action F) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Shell\src\Threading\ShellLocks.cs:line 813
     at JetBrains.VsIntegration.ProjectModel.VSSolutionManager.OnVsSelectionChanged(AddRemoveEventArgs`1 addRemoveEventArgs) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\ProjectModel\VSSolutionManager.cs:line 651
     at JetBrains.DataFlow.ICollectionSignalEx.<>c__DisplayClass7`1.<Advise_Remove>b__6(AddRemoveEventArgs`1 args) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Extension\ICollectionSignalEx.cs:line 62
     at JetBrains.DataFlow.Signal`1.NotifySinks(TValue payload) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Signal!1.cs:line 363
     at JetBrains.DataFlow.Signal`1.Fire(TValue value, Object cookie) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Signal!1.cs:line 524
     at JetBrains.DataFlow.CollectionEvents`1.FireAddRemove(AddRemove action, TValue value, Object cookie) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\CollectionEvents!1.cs:line 272
     at JetBrains.DataFlow.CollectionEvents`1.InternalRemove(TValue value, Object cookie) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\CollectionEvents!1.cs:line 434
     at JetBrains.DataFlow.CollectionEvents`1.Remove(TValue value, Object cookie) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\CollectionEvents!1.cs:line 681
     at JetBrains.VsIntegration.Interop.Events.VsSelection.<>c__DisplayClass4.<.ctor>b__1(VsHierarchyItem item) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\Interop\Events\VsSelectionEvents.cs:line 62
     at System.Collections.Generic.List`1.ForEach(Action`1 action)
     at JetBrains.VsIntegration.Interop.Events.VsSelection.<>c__DisplayClass4.<.ctor>b__0() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\Interop\Events\VsSelectionEvents.cs:line 62
     at JetBrains.DataFlow.ISignalEx.<>c__DisplayClass1`1.<Advise>b__0(TValue value) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Extension\ISignalEx.cs:line 22
     at JetBrains.DataFlow.Signal`1.NotifySinks(TValue payload) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Signal!1.cs:line 363
     at JetBrains.DataFlow.Signal`1.Fire(TValue value, Object cookie) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Signal!1.cs:line 524
     at JetBrains.DataFlow.Signal`1.Fire(TValue value) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Signal!1.cs:line 473
     at JetBrains.VsIntegration.Interop.Events.VsSelection.Sink.Microsoft.VisualStudio.Shell.Interop.IVsSelectionEvents.OnSelectionChanged(IVsHierarchy pHierOld, UInt32 itemidOld, IVsMultiItemSelect pMISOld, ISelectionContainer pSCOld, IVsHierarchy pHierNew, UInt32 itemidNew, IVsMultiItemSelect pMISNew, ISelectionContainer pSCNew) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\Interop\Events\VsSelectionEvents.cs:line 224
     at Microsoft.VisualStudio.Shell.Interop.IVsTrackSelectionEx.OnSelectChangeEx(IntPtr pHier, UInt32 itemid, IVsMultiItemSelect pMIS, IntPtr pSC)
     at Microsoft.VisualStudio.Labs.HierarchyPivotNavigator.PropagateSelection(IServiceProvider serviceProvider, IVsTrackSelectionEx trackSelection, SafeIUnknown safeSelectionContainer, IntPtr hierarchy, UInt32 itemid, IVsMultiItemSelect multiItemSelect)
     at Microsoft.VisualStudio.Labs.HierarchyPivotNavigator.PropagateSelection()
     at Microsoft.VisualStudio.Labs.HierarchyPivotNavigator.OnSelectionChanged()
     at Microsoft.VisualStudio.Labs.PivotNavigator.OnTreeViewSelectionChanged(Object sender, SelectionChangedEventArgs e)
     at System.Windows.Controls.SelectionChangedEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
     at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
     at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
     at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
     at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
     at System.Windows.UIElement.RaiseEvent(RoutedEventArgs e)
     at System.Windows.Controls.ListBox.OnSelectionChanged(SelectionChangedEventArgs e)
     at Microsoft.VisualStudio.Labs.PivotTreeView.OnSelectionChanged(SelectionChangedEventArgs e)
     at System.Windows.Controls.Primitives.Selector.InvokeSelectionChanged(List`1 unselectedInfos, List`1 selectedInfos)
     at System.Windows.Controls.Primitives.Selector.SelectionChanger.End()
     at System.Windows.Controls.Primitives.Selector.SelectionChanger.SelectJustThisItem(ItemInfo info, Boolean assumeInItemsCollection)
     at System.Windows.Controls.Primitives.Selector.OnSelectedItemChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
     at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
     at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
     at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
     at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType)
     at System.Windows.DependencyObject.SetValueCommon(DependencyProperty dp, Object value, PropertyMetadata metadata, Boolean coerceWithDeferredReference, Boolean coerceWithCurrentValue, OperationType operationType, Boolean isInternal)
     at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
     at Microsoft.VisualStudio.Labs.VirtualizingTreeView.ChangeSelection(IVirtualizingTreeNode selectionTarget, VirtualizingTreeSelectionAction action, Boolean scrollIntoView)
     at Microsoft.VisualStudio.Labs.HierarchyNavigatorPaneBase`1.<>c__DisplayClassb.<ExpandItem>b__a()
     at Microsoft.VisualStudio.ErrorHandler.CallWithCOMConvention(Func`1 method)
     at Microsoft.VisualStudio.Labs.HierarchyNavigatorPaneBase`1.ExpandItem(IVsUIHierarchy pUIH, UInt32 itemid, EXPANDFLAGS grf)
     at Microsoft.VisualStudio.Labs.SolutionNavigatorPaneMarshaler.<>c__DisplayClass42.<Microsoft.VisualStudio.Shell.Interop.IVsUIHierarchyWindow.ExpandItem>b__41()
     at Microsoft.VisualStudio.Shell.ThreadHelper.Invoke[TResult](Func`1 method)
     at Microsoft.VisualStudio.Labs.SolutionNavigatorPaneMarshaler.Microsoft.VisualStudio.Shell.Interop.IVsUIHierarchyWindow.ExpandItem(IVsUIHierarchy pUIH, UInt32 itemid, EXPANDFLAGS expf)
     at EnvDTE80.Solution2.AddSolutionFolder(String Name)
     at Microsoft.VisualStudio.Dialogs.ServiceHelper.InstantiateSample(IVsSample sample, String targetDirectory, String solutionName)
     at Microsoft.VisualStudio.Dialogs.SVsDialogService.CreateProject(INewProjectDialogData npdd)
     at Microsoft.VisualStudio.Dialogs.SVsDialogService.InvokeDialog(VSNEWPROJECTDLGINFO dlgInfo, String& bstrLocation)
     at Microsoft.VisualStudio.Shell.Interop.IVsUIDataSource.Invoke(String verb, Object pvaIn, Object& pvaOut)
     at Microsoft.Internal.VisualStudio.PlatformUI.DataSource.Invoke(String verb, Object pvaIn, Object& pvaOut)
     at Microsoft.VisualStudio.PlatformUI.VsCommand.Execute(Object parameter)
     at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
     at System.Windows.Controls.MenuItem.InvokeClickAfterRender(Object arg)
     at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
     at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
     at System.Windows.Threading.DispatcherOperation.InvokeImpl()
     at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
     at System.Windows.Threading.DispatcherOperation.Invoke()
     at System.Windows.Threading.Dispatcher.ProcessQueue()
     at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
     at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
     at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
     at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
     at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
     at System.Windows.Threading.DispatcherOperation.InvokeImpl()
     at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
     at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
     at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
     at System.Windows.Threading.DispatcherOperation.Invoke()
     at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherOperation operation, CancellationToken cancellationToken, TimeSpan timeout)
     at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
     at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)