NRE Gist

ERROR [2019-05-02 13:02:13Z]: An unhandled exception has occurred. Terminating Visual Studio? False
System.NullReferenceException: Object reference not set to an instance of an object
  at MonoDevelop.Ide.Gui.Workbench.ReparseOpenDocuments () [0x00016] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:1000 
  at MonoDevelop.Ide.ProjectOperations.ShowOptions (MonoDevelop.Projects.WorkspaceObject entry, System.String panelId) [0x0021b] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/ProjectOperations.cs:622 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.<ThrowAsync>b__6_0 (System.Object state) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2018-08/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/AsyncMethodBuilder.cs:1023 
  at MonoDevelop.Ide.DispatchService+GtkSynchronizationContext+TimeoutProxy.HandlerInternal (System.IntPtr data) [0x00014] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide/DispatchService.cs:77 
ERROR [2019-05-02 13:02:41Z]: An unhandled exception has occurred. Terminating Visual Studio? False
System.NullReferenceException: Object reference not set to an instance of an object
  at Xamarin.Ide.ProjectArchiving+<>c__DisplayClass5_0.<ShowArchivesView>b__0 (System.Object o, System.EventArgs args) [0x00068] in /Users/vsts/agent/2.150.0/work/1/s/Xamarin.Addins.Core/Xamarin.Ide.Archival/IProjectArchive.cs:345 
  at Gtk.Application+InvokeProxy.HandlerInternal (System.IntPtr data) [0x0001d] in /Users/builder/jenkins/workspace/build-package-osx-mono/2018-08/external/bockbuild/builds/gtk-sharp-None/gtk/Application.cs:199 
ERROR [2019-05-02 13:03:15Z]: Error while executing command: View Archives
System.NullReferenceException: Object reference not set to an instance of an object
  at Xamarin.Ide.ViewArchivesHandler.Run () [0x00057] in /Users/vsts/agent/2.150.0/work/1/s/Xamarin.Addins.Core/Xamarin.Ide.Archival/ArchiveCommands.cs:303 
  at MonoDevelop.Components.Commands.CommandHandler.Run (System.Object dataItem) [0x00000] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandHandler.cs:75 
  at MonoDevelop.Components.Commands.CommandHandler.InternalRun (System.Object dataItem) [0x00000] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandHandler.cs:39 
  at MonoDevelop.Components.Commands.CommandManager.DefaultDispatchCommand (MonoDevelop.Components.Commands.ActionCommand cmd, MonoDevelop.Components.Commands.CommandInfo info, System.Object dataItem, System.Object target, MonoDevelop.Components.Commands.CommandSource source) [0x0006e] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandManager.cs:1611 
  at MonoDevelop.Components.Commands.CommandManager.DispatchCommand (System.Object commandId, System.Object dataItem, System.Object initialTarget, MonoDevelop.Components.Commands.CommandSource source, System.Nullable`1[T] time, MonoDevelop.Components.Commands.CommandInfo sourceUpdateInfo) [0x003b5] in /Users/vsts/agent/2.150.2/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Components.Commands/CommandManager.cs:1574