[NETSDKE2E]The winforms application which is generated by self-contained publish cannot run successfully.

[vdanche]

Build:
9.0.100-preview.4.24214.1(runtime-9.0.0-preview.4.24211.4)

Repro:
1.dotnet new winforms
2.dotnet publish -r win-x64 --self-contained
3.in publish directory, double-click exe file

Expected:
exe file can run successfully
Actual Result:
There is no any response after double-click exe file

run dll file, file crash

Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly 'System.Private.Windows.Core, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. The system cannot find the file specified.
File name: 'System.Private.Windows.Core, Version=9.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
at win1.Program.Main()

dotnet --info:

Note:
running WinForms successfully.

[v-ainigao]

This issue also repro's on ARM64OS.
build: .net9.0.100-preview.4.24215.10(runtime-9.0.0-preview.4.24211.4)

[marcpopMSFT]

@agocke @elinor-fung is there an issue with the host or with our publish?

[agocke]

I think that depends on whether or not there is in fact a System.Private.Windows.Core in the output directory. If there isn't, I think this is just a bug in publish in gathering output assemblies.

[v-ainigao]

I think that depends on whether or not there is in fact a System.Private.Windows.Core in the output directory. If there isn't, I think this is just a bug in publish in gathering output assemblies.

System.Private.Windows.Core does not exist in the publish output directory.

[richaverma1]

This is a blocker. Who should look at it @agocke @marcpopMSFT ?

[marcpopMSFT]

@dsplaisted Any ideas here? In 8.0, we had no reference to System.Private.Windows.Core but now in 9, I see it showing up in ResolveTargetingPackAssets so we consider it a reference but not needed at runtime.

[dsplaisted]

Sounds like this may be the same as dotnet/winforms#11282

[marcpopMSFT]

@LakshanF @lonitra were you planning on merging this to your preview 4 branch as it's blocking winforms self-contained scenarios?

[vdanche]

This issue has been fixed on 9.0.100-preview.4.24258.4(runtime-9.0.0-preview.4.24252.19)

FYI @richaverma1