[Epic] Opened Microsoft issues tracking

[jeromelaban]

This GitHub issue is a meta issue that tracks opened issues in the Microsoft community system that relate to the developer experience of maintainers and contributors.

If you are building an application with Uno then you typically won't run into these sorts of issues. If you do experience any issues building an application with Uno, we want to know about it. Please open an issue and select either the bug report or the feedback template.

Note for maintainers, this list is maintained by issue priority. VS Preview issues should be added last.

Blocking issues for Visual Studio Windows

Issues are listed by order of priority

1. Very slow IntelliSense on relatively small code base dotnet/roslyn#67926

Issues for Visual Studio Windows

Issues are listed by order of priority

1. net8.0 must be first for WSL debugging to work
2. net8.0 must be first for WebAssembly publishing/debugging to work
   
3. net8.0-windows10 needs to be first for WinAppSDK Hot reload to work
4. Spurious items on file copy/rename (Uno When adding a new page via copy-paste, the csproj adds ItemGroups that makes the new page uncompilable #16605)
5. Add usings refactoring fails after a few tries
6. WSL HotReload does not invoke MetadataUpdater properly
7. WinAppSDK Unpackaged profile cannot be selected properly when a net8.0 mobile target is active
8. Propject properties don't open
9. WebAssembly debugging is freezing the IDE
10. https://developercommunity.visualstudio.com/t/x:DataType-is-not-recognized-on-DataTemp/10617352
11. Add new item wizard does not have Apple items
12. package.appxmanifest cannot be opened
13. Build action for Content cannot be changed

Blocking Issues for .NET Mobile

1. [net7] Creating a cross-targeted net7.0-ios + net6.0-ios packages forces consumers to build with net7 workloads dotnet/sdk#30103
2. ICU causes crash on iOS 17.4 simulator dotnet/runtime#98941
3. Metadata handlers are not executed
4. iOS app startup slow in debug dotnet/maui#11392 (comment)

.NET Mobile Issues

1. [net6] mono_threads_enter_gc_safe_region_unbalanced performance regression xamarin/xamarin-macios#14835
2. Specifying both -f ... and -r ... to dotnet build fails to restore if multiple frameworks are present in the project file dotnet/sdk#21877 (macos)

WebAssembly

1. Provide full updateTypes to MetadataUpdateHandlers dotnet/aspnetcore#52937

WinUI / WinAppSDK

1. dotnet build fails when WindowsAppSDK is referenced in console application.  microsoft/WindowsAppSDK#3548
2. TreeView doesn't preserve the value of IsExpanded when containers in "content mode" are recycled and reused microsoft/microsoft-ui-xaml#9549
3. Build conflicts caused by standalone WebView2 and embedded WebView2 (in Windows App SDK) microsoft/WindowsAppSDK#4249 (Related Uno.WinUI.MSAL and WindowsAppSDKSelfContained clash #14555)
4. Crash when using PublishTrimmed with Packaged app and attempting to reference IValueConverters from external library microsoft/microsoft-ui-xaml#9021
5. MenuFlyout DropShadow persists after it is dismissed microsoft/microsoft-ui-xaml#9485
6. Trying to use a FileOpenPicker while running the app as Administrator will crash the app microsoft/WindowsAppSDK#2504
7. ListView items stop responding as Drag and Drop targets microsoft/microsoft-ui-xaml#9043
8. [Run Text] No Text DependencyProperty available to be able to bind a value in code behind microsoft/microsoft-ui-xaml#8253
9. Random coreclr.dll Access Violations microsoft/WindowsAppSDK#4364
10. AdvancedCollectionView ArgumentOutOfRangeException when remove the last element CommunityToolkit/WindowsCommunityToolkit#4263
11. TreeView crashes when using TemplateSelector and loading certain amount of nodes microsoft/microsoft-ui-xaml#8791
12. ReflectionXamlMetadataProvider GetXamlType taking more than 17 seconds to execute at app startup microsoft/microsoft-ui-xaml#1521
13. App freezes with ItemsPresenter + UniformGridLayout + Binding in ItemTemplate microsoft/microsoft-ui-xaml#6689
14. Ctrl+V accelerator and TextBox paste event not working when replacing TextBox ContextFlyout with custom menu with accelerators microsoft/microsoft-ui-xaml#9068
15. WinUI 3 Cant instantiate a UserControl from a location outside the application package or directory (XamlParseException) microsoft/microsoft-ui-xaml#6299
16. Back navigation button styles seem to be reversed microsoft/microsoft-ui-xaml#8636
17. Proposal: Bring C# 9 "Init-Only" properties to XAML microsoft/microsoft-ui-xaml#2519
18. ToggleSwitch control internally sets a MinWidth to 154, which is way larger than its default width microsoft/microsoft-ui-xaml#3652
19. NumberBox Description does not wrap microsoft/microsoft-ui-xaml#8998
20. Critical crash in WinUI with attached properties in style. microsoft/microsoft-ui-xaml#6388
21. TypeLoadException in Release using Behaviors with an ICommand CommunityToolkit/WindowsCommunityToolkit#4022
22. Proposal: enable styling SVGs in Xaml microsoft/microsoft-ui-xaml#507
23. NavigationBackButtonNormalStyle is wrong when used directly microsoft/microsoft-ui-xaml#9536

Roslyn issues

1. EnC workspace does not report on generators diagnostics dotnet/roslyn#70863
2. CLaSP and Language Server Public API dotnet/roslyn#68696

.NET

• Add design for simplifying workload versioning dotnet/designs#294
• [Wasm][post-MVP] Memory64 support  dotnet/runtime#94108

DocFx

1. [Feature Request] xref link doesn't work as an include link dotnet/docfx#8712

Active for Windows App Sdk

Active for VSMAC

Active for NuGet

• Support SDK Version Management NuGet/Home#13127

Active for Xamarin.UITest

Active for Roslyn (Source Generation)

Resolved (Pending Release)

Resolved (Released)

1. [Build performance of SDK style projects for specific target frameworks in Libraries](https://developercommunity.visualstudio.com/t/Building-a-cross-targeted-project-with-m/651372?space=8&q=building-a-
   cross-targeted-project-with-many-target)
2. version conflict WindowsAppSDK 1.3 unpackaged microsoft/WindowsAppSDK#3591

• dotnet --getProperty can sometime return more than one value dotnet/sdk#38944

1. Syntax classification taking up to 12% of CPU time dotnet/roslyn#68996
2. Popup Overlay Incorrect in Scale/Transform Scenarios -- Regression after 1.3.230724000 microsoft/microsoft-ui-xaml#9433
3. Unable to scroll content of new ScrollViewers after closing a window. Issue not present in 1.5 Experimental 1 and earlier microsoft/microsoft-ui-xaml#9355
4. XAML Intellisense does not recognize types when no WinUI project is present (Uno:
   Intellisense in VS2022 not working when the Windows head is not included #15517)
5. Application Hangs When DPI Aware and Desktop Scaling at 150% microsoft/microsoft-ui-xaml#9327
6. Duplicate assets when referencing a chain of nuget packages microsoft/microsoft-ui-xaml#8857
7. [monovm] Assertion at object.c:657, condition `lock->done' not met dotnet/runtime#96872
8. Rollback file based workload update fails to upgrade from 8.0.100 to 8.0.101 dotnet/sdk#37958
9. [Hot Reload] metadata.c:1326, condition `GINT_TO_UINT32(idx) < table_info_get_rows (t)' not met dotnet/runtime#93860
10. iOS App is getting killed by Watchdog on physical device when debugging #10748
11. Building a NET6/NET7 iOS project on agent M2 ARM 64 hangs/freezes dotnet/msbuild#8970
12. [net6][Catalyst] Testflight published app fails to start with security policy does not allow @ path expansion xamarin/xamarin-macios#14686
13. 3.1% allocations of TypeConversions dotnet/roslyn#68997
14. Can't debug Android or iOS Application and Deploying fails with null reference exception xamarin/xamarin-android#8199

• [workloads] dotnet verify fails on 7.0.401 on some Windows machines dotnet/sdk#36270
• [Hot Reload] ENC0003: Updating 'attribute' requires restarting the application caused by AssemblyInformationalVersionAttribute dotnet/sdk#36666

1. PM UI multi targeting experience is incomplete - support for updating and uninstalling conditional package versions NuGet/Home#4681 (NuGet Package manager does not honor conditional nuget package references)
2. Blazor Wasm Hot Reload fails because of broken browser link connection
3. iOS Debugger Indicates App Has Terminated Immediately dotnet/maui#9056
4. XAML Intellisense is not working
5. [net6] Poor performance for macOS running on CoreCLR xamarin/xamarin-macios#15145 (macos)
6. Building a NET6/NET7 iOS project on agent M2 ARM 64 hangs/freezes dotnet/msbuild#8970
7. [net8 preview 2] dotnet new command never finishes for unknown parameter condition evaluation dotnet/templating#6366
8. Breakpoints not working properly in VS 17.61. [Static and Theme resources are not available in XAML intellisense](https://developercommunity.visualstudio.com/t/static-and-theme-resources-are-not-available-in-th/1358108) (Fixed in 17.4 Preview 1)
9. Legacy style projects are not present in the XAML project selector Fixed in fix(msix): Adjust project creation ordering #5161
10. UWP Intellisense fails when using shared projects (Fixed in 16.9 Preview 3)
11. XAML Editor window may be empty (Fixed in 16.9 Preview 3)
12. [Wasm][AOT] Profiled AOT compilation fails with Segmentation fault dotnet/runtime#70773
13. [Wasm][Threading] garray.c:226: assertion 'array != NULL' failed dotnet/runtime#70572
14. [Wasm][Threading] Task.Delay only continues after a GC dotnet/runtime#70571
15. 1. [EnC] Upgrade change types for containing types dotnet/roslyn#68368
16. No compatible code running on the thread #12635 https://developercommunity.visualstudio.com/t/no-compatible-code-running-on-the-thread/103767231. https://developercommunity.visualstudio.com/t/Dotnet-template-not-being-correctly-exec/10413001

• [Xamarin.Android] Assertion tramp-arm64.c:52, condition '((ins >> 24) & 0x1f) == 0x10' not met xamarin/xamarin-android#7352

1. "Missing value for TargetPlatformWinMDLocation property" when adding a project reference (Not relevant anymore with net6.0+ projects)
2. "Ensure Event Failed" when generating event handler with "New Event Handler" option (Not relevant anymore with net6.0+ projects)
3. Invalid MSBuild properties for Shared projects (Still present in 17.3 Preview 2)
4. ContentPropertyAttribute support for custom assemblies see also XAML Intellisense for inner elements #1407
5. vs4mac globbing issue with the Uno solution
6. XAML Hot Reload in shared projects does not work (Fixed in 16.8)
7. Initial Xaml Intellisense behavior
   Resolved (via Guidance)
8. Code editor project selector switches back to the previous project when clicking the editor

• VS16.x Killer hangs/UI freezes (Released in VS16.2 Pre 4)
• Compilation errors with Microsoft Visual Studio Enterprise 2019 Preview - Version 16.2.0 Preview 4.0

1. Regression - Invalid file name: It must contain only ^a-zA-Z0-9_.+. moved to Re-enable AAPT2 in the Samples and the Uno Solution Template #1382
2. Este proyecto hace referencia a los paquetes NuGet que faltan en este equipo. Use la restauración de paquetes NuGet para descargarlos
3. Android:
   App does not contain a definition for 'InitializeComponent' and no accessible extension method 'InitializeComponent'
4. Shared projects globbing support
5. WebAssembly TFM support (see also VS Dev Community) (not needed as of Uno 3.x)
6. XAML Intellisense is disabled for sdk-style projects (VS 16.9 Pre 3 and later) Worked around in Uno 4.3 as a results of MAUI/WinAppSDK new features ported to Uno.

• Xamarin.iOS fails when running in the simulator with VS4Mac 8.2

• WebAssembly HttpClient fails under AOT (Fixed in mono master)

[ghuntley]

Attach to this comment layouts of specific versions of Visual Studio for Windows:

• v16.0.2 preview 3.0.zip