Exception within Word VSTO after moving from System.Buffers 4.5.1 to 4.6.0

[brunohunziker]

The Word VSTO can no longer be installed when using System.Buffers 4.6.0:

************** Exception Text **************
System.ArgumentException: Value does not fall within the expected range.
at System.Deployment.Internal.Isolation.IActContext.ApplicationBasePath(UInt32 Flags, String& ApplicationPath)
at System.ActivationContext.get_ApplicationDirectory()
at System.AppDomainSetup..ctor(ActivationArguments activationArguments)
at System.AppDomainSetup..ctor(ActivationContext activationContext)
at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.CreateAppDomainSetup(ActivationContext context, Uri deploymentManifestUri, AddInInstallationStatus installStatus)
at Microsoft.VisualStudio.Tools.Applications.Deployment.ClickOnceAddInDeploymentManager.InstallAddIn

[carlossanlop]

Hello, can you please provide a small repro project and attach it in a zip in a comment?

[brunohunziker]

Here you find a small repro project:
WordAddIn4.zip

Steps I did to create the attached repro project:

• created a Word-VSTO C# project in VS2022
• added nuget packages “Microsoft.Identity.Client” and “Microsoft.Bcl.Build”
• (publishing and running setup.exe is still working well)
• Updating nuget packages
• (running setup.exe no longer works)

Thanks!

[brunohunziker]

Any news here? :-)