The manifest file does not open with VSIX-Manifest-Editor

[hahoyer]

Installed products

Microsoft Visual Studio Community 2022
Version 17.4.2
VisualStudio.17.Release/17.4.3+33205.214
Microsoft .NET Framework
Version 4.8.04084

Installed Version: Community

Visual C++ 2022 00482-90000-00000-AA356
Microsoft Visual C++ 2022

ASP.NET and Web Tools 17.4.326.54890
ASP.NET and Web Tools

Azure App Service Tools v3.0.0 17.4.326.54890
Azure App Service Tools v3.0.0

C# Tools 4.4.0-6.22565.8+53091686b435746d62a5df56abfab0e71203d83a
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Microsoft JVM Debugger 1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines

NuGet Package Manager 6.4.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/

Syntax Visualizer 1.0
An extension for visualizing Roslyn SyntaxTrees.

TGit 1.0
Control TortoiseGit from within Visual Studio

Visual Basic Tools 4.4.0-6.22565.8+53091686b435746d62a5df56abfab0e71203d83a
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Visual F# Tools 17.4.0-beta.22512.4+525d5109e389341bb90b144c24e2ad1ceec91e7b
Microsoft Visual F# Tools

Visual Studio IntelliCode 2.2
AI-assisted development for Visual Studio.

Description

The manifest file does not open with VSIX-Manifest-Editor.
Probably it is my fold, probably not. I have no clue.
I hope someone can help.

Steps to recreate

1. Open solution MockLanguage.sln (github-version from Jan 7 23)
2. In solution explorer, project MockLanguageExtension double-click on source.extension.vsixmanifest
3. File is opened in with xml-viewer
4. In solution explorer, project MockLanguageExtension right-click on source.extension.vsixmanifest
5. Select "Open with" and VSIX-Manifest-Editor
6. Message box appears that says "The file cannot be opened with the selected editor. Please choose another editor."

Expected behavior

It should open the manifest with the manifest editor at the first place and without complaining.
A least it should give a hint what 's actually wrong.

[peteraritchie]

Same here.

"The file cannot be opened with the selected editor. Please choose another editor."