Integration not working after Visual Studio for Mac 7.6 update

[stanchevivan]

After upgrading Visual Studio for MAC to version 7.6, feature file can't be opened, and "Object reference not set to an instance to an object" error appears for every feature

[quinagh]

I think this is the error

ERROR [2018-08-24 16:00:07Z]: System.NullReferenceException: Object reference not set to an instance of an object at MonoDevelop.Ide.Editor.Highlighting.SyntaxHighlightingService+<>cDisplayClass30_1.b__1 () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.Highlighting/SyntaxHighlightingService.cs:308 at MonoDevelop.Ide.Editor.Highlighting.AbstractSyntaxHighlightingDefinitionProvider.GetSyntaxHighlightingDefinition () [0x0000f] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.Highlighting/ISyntaxHighlightingDefinitionProvider.cs:78 at MonoDevelop.Ide.Editor.Highlighting.SyntaxHighlightingService.GetSyntaxHighlightingDefinitionByName (MonoDevelop.Core.FilePath fileName) [0x000df] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.Highlighting/SyntaxHighlightingService.cs:715 at MonoDevelop.Ide.Editor.Highlighting.SyntaxHighlightingService.GetSyntaxHighlightingDefinition (MonoDevelop.Core.FilePath fileName, System.String mimeType) [0x00009] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.Highlighting/SyntaxHighlightingService.cs:748 at Mono.TextEditor.TextDocument.InitializeSyntaxMode () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/Mono.TextEditor.Shared/Mono.TextEditor/Document/TextDocument.cs:181 at Mono.TextEditor.TextDocument.get_SyntaxMode () [0x00019] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/Mono.TextEditor.Shared/Mono.TextEditor/Document/TextDocument.cs:139 at MonoDevelop.SourceEditor.ExtensibleTextEditor.get_SyntaxHighlighting () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/ExtensibleTextEditor.cs:89 at MonoDevelop.SourceEditor.SourceEditorView.MonoDevelop.Ide.Editor.ITextEditorImpl.get_SyntaxHighlighting () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/addins/MonoDevelop.SourceEditor2/MonoDevelop.SourceEditor/SourceEditorView.cs:3124 at MonoDevelop.Ide.Editor.TextEditor.get_SyntaxHighlighting () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs:204 at MonoDevelop.Ide.Editor.TextMate.TextMateDocumentIndentEngine..ctor (MonoDevelop.Ide.Editor.TextEditor editor) [0x00018] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.TextMate/TextMateDocumentIndentEngine.cs:74 at MonoDevelop.Ide.Editor.TextMate.TextMateIndentationTracker..ctor (MonoDevelop.Ide.Editor.TextEditor editor) [0x0000d] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.TextMate/TextMateIndentationTracker.cs:44 at MonoDevelop.Ide.Editor.TextMate.TextMateIndentationTextEditorExtension.Editor_MimeTypeChanged (System.Object sender, System.EventArgs e) [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.TextMate/TextMateIndentationTextEditorExtension.cs:43 at MonoDevelop.Ide.Editor.TextMate.TextMateIndentationTextEditorExtension.Initialize () [0x0001d] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.TextMate/TextMateIndentationTextEditorExtension.cs:38 at MonoDevelop.Ide.Editor.Extension.TextEditorExtension.Initialize (MonoDevelop.Ide.Editor.TextEditor editor, MonoDevelop.Ide.Editor.DocumentContext context) [0x0003d] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor.Extension/TextEditorExtension.cs:65 at MonoDevelop.Ide.Editor.TextEditor.SetExtensionChain (MonoDevelop.Ide.Editor.DocumentContext documentContext, System.Collections.Generic.IEnumerable`1[T] extensions) [0x00053] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs:1190 at MonoDevelop.Ide.Editor.TextEditor.InitializeExtensionChain (MonoDevelop.Ide.Editor.DocumentContext documentContext) [0x00102] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Editor/TextEditor.cs:1171 at MonoDevelop.Ide.Gui.Document.InitializeExtensionChain () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:686 at MonoDevelop.Ide.Gui.Document.InitializeEditor () [0x00045] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:717 at MonoDevelop.Ide.Gui.Document.OnDocumentAttached () [0x00008] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Document.cs:723 at MonoDevelop.Ide.Gui.Workbench.WrapDocument (MonoDevelop.Ide.Gui.IWorkbenchWindow window) [0x00056] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:877 at MonoDevelop.Ide.Gui.ViewCommandHandlers..ctor (MonoDevelop.Ide.Gui.IWorkbenchWindow window) [0x0000d] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/ViewCommandHandlers.cs:50 at MonoDevelop.Ide.Gui.SdiWorkspaceWindow.CreateCommandHandler () [0x00000] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/SdiWorkspaceWindow.cs:122 at MonoDevelop.Ide.Gui.DefaultWorkbench.ShowView (MonoDevelop.Ide.Gui.ViewContent content, System.Boolean bringToFront, MonoDevelop.Ide.Gui.IViewDisplayBinding binding, MonoDevelop.Components.DockNotebook.DockNotebook notebook) [0x00120] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/DefaultWorkbench.cs:445 at MonoDevelop.Ide.Gui.LoadFileWrapper+d8.MoveNext () [0x00274] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:1616 --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) [0x00037] in /Users/builder/jenkins/workspace/build-package-osx-mono/2018-02/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:187 at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) [0x00028] in /Users/builder/jenkins/workspace/build-package-osx-mono/2018-02/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:156 at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) [0x00008] in /Users/builder/jenkins/workspace/build-package-osx-mono/2018-02/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:128 at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2018-02/external/bockbuild/builds/mono-x64/mcs/class/referencesource/mscorlib/system/runtime/compilerservices/TaskAwaiter.cs:357 at MonoDevelop.Ide.Gui.Workbench+d__118.MoveNext () [0x00373] in /Users/vsts/agent/2.138.6/work/1/s/monodevelop/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.Gui/Workbench.cs:1096

[jimbobbennett]

This appears to be a VS for Mac bug - I've raised an issue around it here: https://github.com/mono/monodevelop/issues/5873

[jimbobbennett]

Just published a version with a workaround - 1.11.2. This removes syntax highlighting so that this works with VS for Mac 7.6. 7.7 has a fix for this issue so will re-publish with syntax highlighting when 7.7 is released