Unable to run/debug WinAppSDK (Packaged) target: "Project does not know how to run the profile 'MsixPackage'" and deployment option is missing

[DJDQfff]

Description

Hello,

I am experiencing an issue when trying to run and debug a newly created Uno Platform app targeting WinAppSDK (Packaged) in Visual Studio.

When I click the debug button, a dialog pops up with the following error:

"Project does not know how to run the profile named 'xxx (WinAppSDK Packaged)' with the command 'MsixPackage'."

Additionally, the UnoApp project cannot be checked for deployment in the Visual Studio Configuration Manager.

Note: Other targets like Desktop work perfectly fine. This issue only affects the WinAppSDK target. I have also noticed that this problem occurs occasionally even when creating a blank template project.

Environment

• OS: [e.g., Windows 10 / Windows 11]
• Visual Studio Version: [e.g., VS 2022 17.x.x]
• Uno Platform Version / Uno.Sdk Version: [e.g., 5.x.x / 6.x.x]
• Target Framework: [e.g., net8.0-windows10.0.19041.0]

Steps to Reproduce

1. Create a new Uno Platform app using the template in Visual Studio.
2. Select the xxx (WinAppSDK Packaged) debug profile.
3. Press F5 to start debugging.
4. Observe the error dialog.
5. Check the Configuration Manager and notice the deployment checkbox is missing for the main UnoApp project.

Expected Behavior

The application should build, deploy, and launch successfully in the packaged WinAppSDK mode without any configuration errors.

Actual Behavior

Visual Studio throws a "Project does not know how to run the profile" error, and the deployment option is unavailable.

Additional Context / Workarounds Tried

• Verified that other targets (e.g., Desktop) run without issues.
• Tried creating a blank Uno template, but the issue still occurs occasionally.
• [Mention any other troubleshooting steps you have tried, e.g., cleaning the solution, deleting bin/obj folders, restarting VS, etc.]

Any guidance or insights on how to resolve this would be greatly appreciated. Thank you!