Upgrading a VB.NET WPF project failed - but reported as success - Two issues

[adegeo]

• Include the log file upgrade-assistant.clef that is produced in the working directory

This log file wasn't generated...

Describe the bug

I work on the .NET docs. I needed to verify the code samples used by this project, and encountered issues trying to upgrade. There are two main issues:

1. It can't seem to figure out that I don't want x86

   When you open the project it prompts to upgrade to .NET 4.8, which is fine. You can run the project and everything works. I went to upgrade the project through the upgrade assistant and that's where problems started.

   It first prompts to save the SLN (because one doesn't exist) and that works fine. Next I start the upgrade as in-place which succeeds. When I run the project I get this error:

   

   This is in the project file:

   <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
   

   The solution file has:

   Microsoft Visual Studio Solution File, Format Version 12.00
   # Visual Studio Version 17
   VisualStudioVersion = 17.10.35027.167
   MinimumVisualStudioVersion = 10.0.40219.1
   Project("{F184B08F-C81C-45F6-A57F-5ABD9991F28F}") = "DragDropWalkthroughVB", "DragDropWalkthroughVB.vbproj", "{7A9D4CC9-9019-4514-9155-1FDB604652B9}"
   EndProject
   Global
       GlobalSection(SolutionConfigurationPlatforms) = preSolution
           Debug|x86 = Debug|x86
           Release|x86 = Release|x86
       EndGlobalSection
       GlobalSection(ProjectConfigurationPlatforms) = postSolution
           {7A9D4CC9-9019-4514-9155-1FDB604652B9}.Debug|x86.ActiveCfg = Debug|x86
           {7A9D4CC9-9019-4514-9155-1FDB604652B9}.Debug|x86.Build.0 = Debug|x86
           {7A9D4CC9-9019-4514-9155-1FDB604652B9}.Release|x86.ActiveCfg = Release|x86
           {7A9D4CC9-9019-4514-9155-1FDB604652B9}.Release|x86.Build.0 = Release|x86
       EndGlobalSection
       GlobalSection(SolutionProperties) = preSolution
           HideSolutionNode = FALSE
       EndGlobalSection
       GlobalSection(ExtensibilityGlobals) = postSolution
           SolutionGuid = {0B671A80-7836-481B-BB60-E69540C47797}
       EndGlobalSection
   EndGlobal
   

   After the upgrade, I need to delete this solution file. When reopening the project, it generates a solution file that targets ANYCPU.

2. WPF has a default My namespace extension. This doesn't seem to migrate.

   If I add <UseWindowsForms> to the project file, the errors related to the MyWpfExtension disappear.

   But I can't seem to get the BC30002 Type 'Global.DragDropWalkthroughVB.My.MySettings' is not defined. error to go away. When I click on it the code file is opened but there is no problem. I can F12 to navigate to source and resolve MySettings no problem.

To Reproduce

VBWPFDragDrop.zip

Exceptions (if any)

Further technical details

• Windows 24H2 64-bit
• Using Visual Studio 2022 17.11.5