gistfile1.txt

System.NullReferenceException: Object reference not set to an instance of an object
  at MonoDevelop.Ide.Gui.Document+<WrapView>c__AnonStorey41.<>m__45 (MonoDevelop.Ide.Gui.DocumentView v) [0x00000] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:280 
  at System.Linq.Enumerable.First[DocumentView] (IEnumerable`1 source, System.Func`2 predicate, Fallback fallback) [0x00013] in /private/tmp/monobuild/build/BUILD/mono-2.10.9/mcs/class/System.Core/System.Linq/Enumerable.cs:810 
  at System.Linq.Enumerable.FirstOrDefault[DocumentView] (IEnumerable`1 source, System.Func`2 predicate) [0x00007] in /private/tmp/monobuild/build/BUILD/mono-2.10.9/mcs/class/System.Core/System.Linq/Enumerable.cs:859 
  at MonoDevelop.Ide.Gui.Document.WrapView (IBaseViewContent content) [0x0000d] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:280 
  at MonoDevelop.Ide.Gui.Document.get_ActiveView () [0x00007] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:238 
  at MonoDevelop.DesignerSupport.ToolboxService.OnViewChanged (System.Object sender, System.EventArgs args) [0x00034] in /Users/mkrueger/work/a/monodevelop/main/src/addins/MonoDevelop.DesignerSupport/MonoDevelop.DesignerSupport/ToolboxService.cs:427 
  at MonoDevelop.DesignerSupport.ToolboxService.onActiveDocChanged (System.Object o, System.EventArgs e) [0x000ba] in /Users/mkrueger/work/a/monodevelop/main/src/addins/MonoDevelop.DesignerSupport/MonoDevelop.DesignerSupport/ToolboxService.cs:416 
  at (wrapper delegate-invoke) <Module>:invoke_void__this___object_EventArgs (object,System.EventArgs)
  at MonoDevelop.Ide.Gui.Workbench.OnDocumentChanged (System.Object s, System.EventArgs a) [0x0000b] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:624 
  at MonoDevelop.Ide.Gui.DefaultWorkbench.OnActiveWindowChanged (System.Object sender, System.EventArgs e) [0x00087] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:728 
  at MonoDevelop.Ide.Gui.DefaultWorkbench.RemoveTab (Int32 pageNum, Boolean animate) [0x0002e] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:1150 
  at MonoDevelop.Ide.Gui.SdiWorkspaceWindow.CloseWindow (Boolean force, Boolean animate) [0x00032] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/SdiWorkspaceWindow.cs:374 
  at MonoDevelop.Ide.Gui.Document.Close () [0x00000] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:493 
  at MonoDevelop.Ide.RootWorkspace.Close (Boolean saveWorkspacePreferencies, Boolean closeProjectFiles) [0x000ab] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:444 
  at MonoDevelop.Ide.RootWorkspace.Close (Boolean saveWorkspacePreferencies) [0x00000] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:424 
  at MonoDevelop.Ide.RootWorkspace.Close () [0x00000] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:419 
  at MonoDevelop.Ide.RootWorkspace.OpenWorkspaceItem (System.String filename, Boolean closeCurrent, Boolean loadPreferences) [0x00021] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:497 
  at MonoDevelop.Ide.RootWorkspace.OpenWorkspaceItem (System.String filename, Boolean closeCurrent) [0x00000] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/RootWorkspace.cs:491 
  at MonoDevelop.Ide.Commands.RecentProjectListHandler.Run (System.Object dataItem) [0x00017] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Commands/FileCommands.cs:348 
  at MonoDevelop.Components.Commands.CommandHandler.InternalRun (System.Object dataItem) [0x00000] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandHandler.cs:42 
  at MonoDevelop.Components.Commands.CommandManager.DefaultDispatchCommand (MonoDevelop.Components.Commands.ActionCommand cmd, MonoDevelop.Components.Commands.CommandInfo info, System.Object dataItem, System.Object target, CommandSource source) [0x00076] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandManager.cs:1097 
  at MonoDevelop.Components.Commands.CommandManager.DispatchCommand (System.Object commandId, System.Object dataItem, System.Object initialTarget, CommandSource source) [0x002d1] in /Users/mkrueger/work/a/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandManager.cs:1067