RSRP-296051: Object reference not set to an instance of an object.

  at JetBrains.ProjectModel.ProjectFolderImpl.FindProjectItemByLocation(FileSystemPath path) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Projects\src\model2\ProjectImplementation\ProjectFolderImpl.cs:line 129
     at JetBrains.VsIntegration.ProjectModel.ProjectModelSynchronizer.GetProjectItemByHierarchyItemCore(VsHierarchyItem hitem, Boolean lookInReferences, OnError onerror) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\ProjectModel\ProjectModelSynchronizer.cs:line 349
     at JetBrains.VsIntegration.ProjectModel.ProjectModelSynchronizer.TryGetProjectItemByHierarchyItem(VsHierarchyItem hitem, Boolean lookInReferences) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\ProjectModel\ProjectModelSynchronizer.cs:line 320
     at JetBrains.VsIntegration.ProjectModel.ProjectModelSynchronizer.TryGetOrCreateProjectItemByHierarchyItem(VsHierarchyItem hitem) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\ProjectModel\ProjectModelSynchronizer.cs:line 434
     at JetBrains.VsIntegration.Whidbey.DocumentModel.VsDocumentManagerWhidbey.OnRegisterTextBuffer(VsTextBufferData textBufferData) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\DocumentModel\Whidbey\VsDocumentManagerWhidbey.cs:line 440
     at JetBrains.VsIntegration.Whidbey.DocumentModel.VsDocumentManagerWhidbey.<>c__DisplayClass1d.<OnRdtAfterFirstDocumentLock>b__1c() in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\DocumentModel\Whidbey\VsDocumentManagerWhidbey.cs:line 368
     at JetBrains.Application.IShellLocksEx.ExecuteWithReadLock(IShellLocks thіs, Action F) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Shell\src\Threading\ShellLocks.cs:line 989
     at JetBrains.VsIntegration.Whidbey.DocumentModel.VsDocumentManagerWhidbey.<>c__DisplayClass1d.<OnRdtAfterFirstDocumentLock>b__1b() in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\DocumentModel\Whidbey\VsDocumentManagerWhidbey.cs:line 361
     at JetBrains.Util.LogCookie.Execute(String comment, Action F) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\Logger\LogCookie.cs:line 37
     at JetBrains.VsIntegration.Whidbey.DocumentModel.VsDocumentManagerWhidbey.<>c__DisplayClass1d.<OnRdtAfterFirstDocumentLock>b__1a() in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\DocumentModel\Whidbey\VsDocumentManagerWhidbey.cs:line 361
     at JetBrains.Util.Concurrency.UnguardedCallbackMerger.<>c__DisplayClass3.<ExecuteOrQueueOrMerge>b__0() in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\Concurrency\UnguardedCallbackMerger.cs:line 139
     at JetBrains.Threading.ReentrancyGuard.Execute(String name, Action action) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\Concurrency\ReentrancyGuard.cs:line 266

  at JetBrains.Threading.ReentrancyGuard.TryExecute(String name, Action action) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\Concurrency\ReentrancyGuard.cs:line 415
     at JetBrains.Threading.ReentrancyGuardEx.ExecuteOrQueue(ReentrancyGuard thіs, Lifetime lifetime, String name, Action F) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\Concurrency\ReentrancyGuardEx.cs:line 64
     at JetBrains.Util.Concurrency.UnguardedCallbackMerger.ExecuteOrQueueOrMerge(Lifetime lifetimeQueue, String name, Action F) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\Concurrency\UnguardedCallbackMerger.cs:line 136
     at JetBrains.VsIntegration.Whidbey.DocumentModel.VsDocumentManagerWhidbey.OnRdtAfterFirstDocumentLock(EventArgs`1 args) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\DocumentModel\Whidbey\VsDocumentManagerWhidbey.cs:line 361
     at JetBrains.DataFlow.Signal`1.NotifySinks(TValue payload) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\DataFlow\Signal!1.cs:line 363
     at JetBrains.DataFlow.Signal`1.Fire(TValue value, Object cookie) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\DataFlow\Signal!1.cs:line 524
     at JetBrains.DataFlow.Signal`1.Fire(TValue value) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\Util\src\DataFlow\Signal!1.cs:line 473
     at JetBrains.VsIntegration.Interop.Events.VsRunningDocumentTableEvents.Sink.Microsoft.VisualStudio.Shell.Interop.IVsRunningDocTableEvents.OnAfterFirstDocumentLock(UInt32 docCookie, UInt32 dwRDTLockType1, UInt32 dwReadLocksRemaining, UInt32 dwEditLocksRemaining) in c:\BuildAgent\work\1d5606e7e667bf54\Platform\src\VisualStudio\Core\src\Interop\Events\VsRunningDocumentTableEvents.cs:line 288
     at Microsoft.VisualStudio.Shell.Interop.IVsRunningDocumentTable.NotifyDocumentChanged(UInt32 dwCookie, UInt32 grfDocChanged)
     at Microsoft.VisualStudio.Editor.Implementation.VsDocDataAdapter.NotifyDocChanged()
     at Microsoft.VisualStudio.Editor.Implementation.VsDocDataAdapter.NotifyOfDocDataLoad(Boolean setUserReadOnly)
     at Microsoft.VisualStudio.Editor.Implementation.VsDocDataAdapter.Load(String pszFilename, UInt32 grfMode, Int32 fReadOnly, Object source)
     at Microsoft.VisualStudio.Editor.Implementation.VsTextBufferAdapter.Load(String pszFilename, UInt32 grfMode, Int32 fReadOnly)
     at Microsoft.VisualStudio.Editor.Implementation.VsTextBufferAdapter.LoadDocData(String pszMkDocument)
     at Microsoft.VisualStudio.Shell.Interop.IVsUIHierarchy.ExecCommand(UInt32 itemid, Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
     at Microsoft.VisualStudio.Labs.HierarchyUtilities.<>c__DisplayClass22.<ExecHierParentChain>b__1f()
     at Microsoft.VisualStudio.ErrorHandler.CallWithCOMConvention(Func`1 method)
     at Microsoft.VisualStudio.Labs.HierarchyUtilities.ExecHierParentChain(IVsHierarchyItemManager manager, IVsUIHierarchy lpUIHCmd, IVsUIHierarchy lpUIHCurrent, UInt32 itemidCurrent, Guid& pguidCmdGroupRef, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
     at Microsoft.VisualStudio.Labs.HierarchyItem.HierarchyInvocationController.Invoke(IEnumerable`1 items, InputSource inputSource, Boolean preview)
     at Microsoft.VisualStudio.Labs.InvocationController.Invoke(IEnumerable`1 items, InputSource inputSource, Boolean preview, Func`2 getController)
     at Microsoft.VisualStudio.Labs.InvocationController.Invoke(IEnumerable`1 items, InputSource inputSource, Boolean preview)
     at Microsoft.VisualStudio.Labs.PivotTreeViewItem.InvokeItem(InputDevice sourceDevice)
     at Microsoft.VisualStudio.Labs.PivotTreeViewItem.OnMouseLeftButtonDown(MouseButtonEventArgs e)
     at System.Windows.UIElement.OnMouseLeftButtonDownThunk(Object sender, MouseButtonEventArgs e)
     at System.Windows.Input.MouseButtonEventArgs.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.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
     at System.Windows.UIElement.OnMouseDownThunk(Object sender, MouseButtonEventArgs e)
     at System.Windows.Input.MouseButtonEventArgs.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.ContentElement.RaiseTrustedEvent(RoutedEventArgs args)
     at System.Windows.Input.InputManager.ProcessStagingArea()
     at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
     at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
     at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
     at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
     at System.Windows.Interop.HwndSource.InputFilterMessage(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)