Failed to build WPF

[kant2002]

Description

When building, receive this errror message

LINK : fatal error LNK1256: ALINK operation failed (80040436) : Error signing assembly -- Access is denied.

Reproduction Steps

just run build.cmd

Expected behavior

Want to clean build

Actual behavior

Have error message above

Regression?

No response

Known Workarounds

No response

Impact

No response

Configuration

No response

Other information

No response

[lindexi]

@kant2002 Which commit you build?

[kant2002]

Main. Just clone a fresh copy

[lindexi]

@kant2002 I build fail with LINK : fatal error C1047......

Today is 2025.9.11, and I still hard to build the wpf repo.

[kant2002]

I have to run this command

reg add HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\StrongName /v MachineKeyset /t REG_DWORD /d 0

[harshit7962]

@kant2002 and @lindexi can you please share the config dotnet info and the VS version being used. I tried building the repo and it was successful.

Configs at my end:
VS version: 17.14.13 Preview 1.0

dotnet info:

.NET SDK:
 Version:           10.0.100-rc.1.25420.111
 Commit:            6218c7cdc7
 Workload version:  10.0.100-manifests.e3b0c442
 MSBuild version:   17.15.0-preview-25420-111+6218c7cdc

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.26487
 OS Platform: Windows
 RID:         win-x64
 Base Path:   D:\source\repos\dotnet\wpf\.dotnet\sdk\10.0.100-rc.1.25420.111\

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
  Version:      10.0.0-preview.7.25377.103
  Architecture: x64
  Commit:       6a953e7616

.NET SDKs installed:
  9.0.205 [C:\Program Files\dotnet\sdk]
  9.0.304 [C:\Program Files\dotnet\sdk]
  10.0.100-preview.7.25377.103 [C:\Program Files\dotnet\sdk]
  10.0.100-rc.1.25420.111 [D:\source\repos\dotnet\wpf\.dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 9.0.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 10.0.0-rc.1.25377.103 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 9.0.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 10.0.0-preview.7.25377.103 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 9.0.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 10.0.0-preview.7.25377.103 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

[kant2002]

dotnet --info ``` .NET SDK: Version: 10.0.100-rc.1.25451.107 Commit: 2db1f5ee2b Workload version: 10.0.100-manifests.a6e8bec0 MSBuild version: 17.15.0-preview-25451-107+2db1f5ee2 Runtime Environment: OS Name: Windows OS Version: 10.0.26100 OS Platform: Windows RID: win-x64 Base Path: C:\Program Files\dotnet\sdk\10.0.100-rc.1.25451.107\ .NET workloads installed: There are no installed workloads to display. Configured to use workload sets when installing new manifests. No workload sets are installed. Run "dotnet workload restore" to install a workload set. Host: Version: 10.0.0-rc.1.25451.107 Architecture: x64 Commit: 2db1f5ee2b .NET SDKs installed: 9.0.305 [C:\Program Files\dotnet\sdk] 10.0.100-rc.1.25451.107 [C:\Program Files\dotnet\sdk] .NET runtimes installed: Microsoft.AspNetCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 9.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.AspNetCore.App 10.0.0-rc.1.25451.107 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 9.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 10.0.0-rc.1.25451.107 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.WindowsDesktop.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 9.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Microsoft.WindowsDesktop.App 10.0.0-rc.1.25451.107 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App] Other architectures found: x86 [C:\Program Files (x86)\dotnet] registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation] ``` The VS 2022 Preview, VS 2026 Insider installed. That's clean computer for me which I only very recently install Windows (less then two weeks), so do not make usually programming mess 😄

[lindexi]

@harshit7962 Can I know the build command you use? Does .\build.cmd -pack -ci -configuration Release -prepareMachine /p:Platform=x86 ?

My VisualStudio version is 17.14.14

dotnet --info

Host:
  Version:      10.0.0-rc.1.25451.107
  Architecture: x64
  Commit:       2db1f5ee2b
  RID:          win-x64

.NET SDKs installed:
  2.1.300 [C:\Program Files\dotnet\sdk]
  3.1.426 [C:\Program Files\dotnet\sdk]
  5.0.408 [C:\Program Files\dotnet\sdk]
  6.0.428 [C:\Program Files\dotnet\sdk]
  8.0.100-preview.7.23376.3 [C:\Program Files\dotnet\sdk]
  8.0.206 [C:\Program Files\dotnet\sdk]
  9.0.100-preview.5.24307.3 [C:\Program Files\dotnet\sdk]
  9.0.301 [C:\Program Files\dotnet\sdk]
  9.0.305 [C:\Program Files\dotnet\sdk]
  10.0.100-preview.6.25358.103 [C:\Program Files\dotnet\sdk]
  10.0.100-rc.1.25451.107 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.All 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
  Microsoft.AspNetCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 8.0.0-preview.7.23375.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 8.0.17 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 9.0.0-preview.5.24306.11 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 9.0.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 9.0.9 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 10.0.0-rc.1.25451.107 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 8.0.0-preview.7.23375.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 8.0.17 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 9.0.0-preview.5.24306.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 9.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 9.0.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 10.0.0-rc.1.25451.107 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.32 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.36 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 7.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 8.0.0-preview.7.23376.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 8.0.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 8.0.17 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 8.0.20 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 9.0.0-preview.5.24306.8 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 9.0.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 9.0.9 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 10.0.0-rc.1.25451.107 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
  x86   [C:\Program Files (x86)\dotnet]
    registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
  Not set

global.json file:
  C:\lindexi\Code\wpf\global.json

Learn more:
  https://aka.ms/dotnet/info

Download .NET:
  https://aka.ms/dotnet/download

[lindexi]

@harshit7962 I build the v6.0.36 with .\build.cmd -pack -ci -configuration Debug -prepareMachine /p:Platform=x86 fail in GitHub Action: https://github.com/dotnet-campus/wpf/actions/runs/17667786476/job/50212626876

The GitHub Action use the windows-latest system: https://github.com/actions/runner-images/blob/main/images/windows/Windows2022-Readme.md

The error message is:

D:\a\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Printing\CPP\src\PrintSystemPathResolver.cpp(308,50): error C5307: 'int System::String::IndexOf(wchar_t,int)': argument (1) converted from 'char' to 'wchar_t'. Missing 'L' encoding-prefix for character literal? [D:\a\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Printing\System.Printing.vcxproj]
D:\a\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Printing\CPP\src\PrintSystemPathResolver.cpp(417,19): error C5307: 'int System::String::IndexOf(wchar_t,int)': argument (1) converted from 'char' to 'wchar_t'. Missing 'L' encoding-prefix for character literal? [D:\a\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Printing\System.Printing.vcxproj]
D:\a\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Printing\CPP\src\PrintSystemPathResolver.cpp(473,19): error C5307: 'int System::String::IndexOf(wchar_t,int)': argument (1) converted from 'char' to 'wchar_t'. Missing 'L' encoding-prefix for character literal? [D:\a\wpf\wpf\src\Microsoft.DotNet.Wpf\src\System.Printing\System.Printing.vcxproj]

[harshit7962]

I tried the build with the following commands:
.\build.cmd -plat x64
.\build.cmd -pack -ci -configuration Release -prepareMachine -plat x64

and was able to work with both of them.

Regarding the errors mentioned above, appending an L in the lines mentioned should work, we had already fixed this in our code, I am not sure why you are still seeing this, do you have the latest changes in your local?
Ref: https://github.com/dotnet/wpf/blob/main/src/Microsoft.DotNet.Wpf/src/System.Printing/CPP/src/PrintSystemPathResolver.cpp#L308

[lindexi]

@harshit7962 Thank you and I know why now, the fixs #10023 do not be merged to .NET 6, and it only be merged to .NET 10. So that I build the v6.0.36 fail with C5307.