RSRP-289617: The raw IVsTextBuffer interface is Null.

  at JetBrains.VsIntegration.Interop.Shim.TextManager.IVsTextBuffer.AssertNotNull() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\Interop\Shim\TextManager\IVsTextBuffer.cs:line 235
     at JetBrains.VsIntegration.DevTen.Interop.Extension.ITextBufferEx.GetIVsTextBuffer(ITextBuffer buffer, IVsEditorAdaptersFactoryService vsEditorAdaptersFactoryService) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\v10.v11\Src\Interop\Extension\ITextBufferEx.cs:line 24
     at JetBrains.VsIntegration.DevTen.TextControl.VsAttachTextControlsToTextViews.TryGetCreateParams(IWpfTextView view, IVsRunningDocumentTable rdt, VsWindowFrameManager vsWindowFrameManager, IShellLocks invocator, ISolution solution, IVsEditorAdaptersFactoryService vsEditorAdaptersFactoryService, ProjectModelSynchronizer pms, WindowsMessageHookManager hookman) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\v10.v11\Src\TextControl\VsAttachTextControlsToTextViews.cs:line 82
     at JetBrains.VsIntegration.DevTen.TextControl.VsAttachTextControlsToTextViews.<>c__DisplayClass2.<.ctor>b__0(Lifetime lifetimeTextView, IWpfTextView textView) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\v10.v11\Src\TextControl\VsAttachTextControlsToTextViews.cs:line 55
     at JetBrains.DataFlow.ICollectionEventsEx.<>c__DisplayClass17`1.<>c__DisplayClass20.<ForEachItemCore>b__10() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Extension\ICollectionEventsEx.cs:line 209
     at JetBrains.Util.Logger.Catch(Action action) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\Logger\Logger.cs:line 243

  at JetBrains.DataFlow.ICollectionEventsEx.<>c__DisplayClass17`1.<ForEachItemCore>b__f(AddRemoveEventArgs`1 args) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\Extension\ICollectionEventsEx.cs:line 210
     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.InternalAdd(TValue value, Object cookie) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\CollectionEvents!1.cs:line 373
     at JetBrains.DataFlow.CollectionEvents`1.AddRange(IEnumerable`1 items) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\DataFlow\CollectionEvents!1.cs:line 552
     at JetBrains.VsIntegration.DevTen.TextControl.VsTextViewCollectorDevTen.<>c__DisplayClass4.<.ctor>b__0() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\v10.v11\Src\TextControl\VsTextViewCollectorDevTen.cs:line 48
     at JetBrains.Util.Concurrency.UnguardedCallbackMerger.<>c__DisplayClass3.<ExecuteOrQueueOrMerge>b__0() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\Util\src\Concurrency\UnguardedCallbackMerger.cs:line 139
     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.TryExecute(String name, Action action) in c:\BuildAgent\work\1939c01d7b25093a\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\1939c01d7b25093a\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\1939c01d7b25093a\Platform\src\Util\src\Concurrency\UnguardedCallbackMerger.cs:line 136
     at JetBrains.VsIntegration.DevTen.TextControl.VsTextViewCollectorDevTen.<>c__DisplayClass4.<.ctor>b__1() in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\v10.v11\Src\TextControl\VsTextViewCollectorDevTen.cs:line 55
     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.VsTextManagerEvents.Sink.Microsoft.VisualStudio.TextManager.Interop.IVsTextManagerEvents.OnRegisterView(IVsTextView pView) in c:\BuildAgent\work\1939c01d7b25093a\Platform\src\VisualStudio\Core\src\Interop\Events\VsTextManagerEvents.cs:line 98
     at Microsoft.VisualStudio.TextManager.Interop.IVsTextManager.RegisterView(IVsTextView pView, IVsTextBuffer pBuffer)
     at Microsoft.VisualStudio.Editor.Implementation.VsTextViewAdapter.Init_InitializeWpfTextView()
     at Microsoft.VisualStudio.Editor.Implementation.VsTextViewAdapter.Init_OnActivation()
     at Microsoft.VisualStudio.Editor.Implementation.VsTextViewAdapter.get_WpfTextViewHost()
     at Microsoft.VisualStudio.Editor.Implementation.VsTextViewAdapter.GetData(Guid& riidKey, Object& pvtData)
     at Microsoft.VisualStudio.Editor.Implementation.VsEditorAdaptersFactoryService.GetWpfTextViewHostFromVsTextView(IVsTextView viewAdapter)
     at Microsoft.VisualStudio.Editor.Implementation.VsEditorAdaptersFactoryService.GetWpfTextViewHost(IVsTextView viewAdapter)
     at Microsoft.VisualStudio.Differencing.Package.DiffViewerCodeWindow.<>c__DisplayClass2.<InitializeViewer>b__0(IDifferenceTextViewModel textViewModel, ITextViewRoleSet baseRoles, IEditorOptions options, FrameworkElement& visualElement, IWpfTextViewHost& textViewHost)
     at Microsoft.VisualStudio.Text.Differencing.Implementation.DifferenceViewer.Initialize(IDifferenceBuffer differenceBuffer, CreateTextViewHostCallback createTextViewHost, IEditorOptions parentOptions)
     at Microsoft.VisualStudio.Differencing.Package.DiffViewerCodeWindow.InitializeViewer()
     at Microsoft.VisualStudio.Differencing.Package.DiffPackage.DiffFiles(String leftFile, String rightFile, IVsWindowFrame& windowFrame, UInt32 options, String caption, String tooltip, String leftLabel, String rightLabel, String inlineLabel, String roles, Boolean packageIsLoading)
     at Microsoft.VisualStudio.Differencing.Package.DiffPackage.<>c__DisplayClass7.<OpenComparisonWindow2>b__6()
     at Microsoft.VisualStudio.Shell.ThreadHelper.Invoke[TResult](Func`1 method)
     at Microsoft.VisualStudio.Differencing.Package.DiffPackage.OpenComparisonWindow2(String leftFile, String rightFile, String caption, String tooltip, String leftLabel, String rightLabel, String inlineLabel, String roles, UInt32 options)
     at Ankh.VS.Diff.InternalDiff.RunDiff(AnkhDiffArgs args)
     at Ankh.Services.AnkhDiff.RunDiff(AnkhDiffArgs args)
     at Ankh.Commands.RepositoryExplorer.ShowRepositoryItemChanges.OnExecute(CommandEventArgs e)
     at Ankh.Commands.CommandMapItem.OnExecute(CommandEventArgs e)
     at Ankh.Commands.CommandMapper.Execute(AnkhCommand command, CommandEventArgs e)
     at Ankh.VSPackage.AnkhSvnPackage.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
     at Ankh.VS.Dialogs.VSDocumentFormPane.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
     at Microsoft.VisualStudio.Platform.WindowManagement.DocumentObjectSite.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
     at Microsoft.VisualStudio.Platform.WindowManagement.WindowFrame.Exec(Guid& pguidCmdGroup, UInt32 nCmdID, UInt32 nCmdexecopt, IntPtr pvaIn, IntPtr pvaOut)
     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)
     at Microsoft.VisualStudio.PlatformUI.NativeMethods.DispatchMessage(MSG& lpmsg)
     at Microsoft.VisualStudio.Platform.WindowManagement.WindowManagerService.<PushMessageLoopOnContextMenuTrackingComponent>b__69(Object sender, PreTranslateMessageEventArgs args)
     at Microsoft.VisualStudio.PlatformUI.OleComponentSupport.OleComponent.FPreTranslateMessageCore(MSG[] pMsg)
     at Microsoft.VisualStudio.PlatformUI.OleComponentSupport.OleComponent.Microsoft.VisualStudio.OLE.Interop.IOleComponent.FPreTranslateMessage(MSG[] pMsg)
     at Microsoft.VisualStudio.OLE.Interop.IOleComponentManager.FPushMessageLoop(UInt32 dwComponentID, UInt32 uReason, IntPtr pvLoopData)
     at Microsoft.VisualStudio.Platform.WindowManagement.WindowManagerService.PushMessageLoopOnContextMenuTrackingComponent()
     at Microsoft.VisualStudio.Shell.Interop.IOleComponentUIManager.ShowContextMenu(UInt32 dwCompRole, Guid& rclsidActive, Int32 nMenuId, POINTS[] pos, IOleCommandTarget pCmdTrgtActive)
     at Microsoft.VisualStudio.Shell.OleMenuCommandService.ShowContextMenu(CommandID menuID, Int32 x, Int32 y)
     at Ankh.Services.AnkhCommandService.ShowContextMenu(AnkhCommandMenu menu, Int32 x, Int32 y)
     at Ankh.UI.Annotate.AnnotateMarginControl.ShowContextMenu()
     at Ankh.UI.Annotate.AnnotateMarginControl.OnMouseClick(MouseEventArgs e)
     at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
     at System.Windows.Forms.Control.WndProc(Message& m)
     at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
     at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
     at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)