CsWinRT component project referencing other C# projects is causing error APPX1101

[AmelBawa-msft]

Describe the bug
Found this issue when working on Dev Home where we're authoring a component that references other C# projects.

Pull request where this issue repros:
microsoft/devhome#3134

Mitigation:
#1327 (comment)

Error output

  D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: Payload contains two or more files with the same destination path 'Microsoft.Win32.Registry.AccessControl.dll'. Source files:  [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\microsoft.win32.registry.accesscontrol\8.0.0\runtimes\win\lib\net8.0\Microsoft.Win32.Registry.AccessControl.dll [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\microsoft.win32.registry.accesscontrol\8.0.0\lib\net8.0\Microsoft.Win32.Registry.AccessControl.dll [D:\a\devhome\devhome\src\DevHome.csproj]

  D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: Payload contains two or more files with the same destination path 'System.Diagnostics.EventLog.dll'. Source files:  [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.diagnostics.eventlog\8.0.0\runtimes\win\lib\net8.0\System.Diagnostics.EventLog.dll [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.diagnostics.eventlog\8.0.0\lib\net8.0\System.Diagnostics.EventLog.dll [D:\a\devhome\devhome\src\DevHome.csproj]

  D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: Payload contains two or more files with the same destination path 'System.DirectoryServices.dll'. Source files:  [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.directoryservices\8.0.0\runtimes\win\lib\net8.0\System.DirectoryServices.dll [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.directoryservices\8.0.0\lib\net8.0\System.DirectoryServices.dll [D:\a\devhome\devhome\src\DevHome.csproj]

  D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: Payload contains two or more files with the same destination path 'System.Management.dll'. Source files:  [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.management\8.0.0\runtimes\win\lib\net8.0\System.Management.dll [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.management\8.0.0\lib\net8.0\System.Management.dll [D:\a\devhome\devhome\src\DevHome.csproj]

  D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: Payload contains two or more files with the same destination path 'System.Security.Cryptography.Pkcs.dll'. Source files:  [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.security.cryptography.pkcs\8.0.0\runtimes\win\lib\net8.0\System.Security.Cryptography.Pkcs.dll [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.security.cryptography.pkcs\8.0.0\lib\net8.0\System.Security.Cryptography.Pkcs.dll [D:\a\devhome\devhome\src\DevHome.csproj]

  D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: Payload contains two or more files with the same destination path 'System.Windows.Extensions.dll'. Source files:  [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.windows.extensions\8.0.0\runtimes\win\lib\net8.0\System.Windows.Extensions.dll [D:\a\devhome\devhome\src\DevHome.csproj]
##[error]D:\a\devhome\devhome\packages\microsoft.windowsappsdk\1.5.240311000\buildTransitive\Microsoft.Build.Msix.Packaging.targets(1515,5): error APPX1101: D:\a\devhome\devhome\packages\system.windows.extensions\8.0.0\lib\net8.0\System.Windows.Extensions.dll [D:\a\devhome\devhome\src\DevHome.csproj]

[roshan27b]

We are not able to do any background task
APPX1101 Payload contains two or more files with the same destination path 'WinRT.Runtime.dll'. Source files:
C:\Users\roshan.bhore.nuget\packages\microsoft.windows.cswinrt\2.0.7\lib\net6.0\WinRT.Runtime.dll
C:\Users\roshan.bhore.nuget\packages\microsoft.windows.sdk.net.ref\10.0.19041.31\lib\net6.0\WinRT.Runtime.dll CCApp C:\Users\roshan.bhore.nuget\packages\microsoft.windowsappsdk\1.5.240607001\buildTransitive\Microsoft.Build.Msix.Packaging.targets 1532

Any timeline for this issue?

[manodasanW]

We are not able to do any background task APPX1101 Payload contains two or more files with the same destination path 'WinRT.Runtime.dll'. Source files: C:\Users\roshan.bhore.nuget\packages\microsoft.windows.cswinrt\2.0.7\lib\net6.0\WinRT.Runtime.dll C:\Users\roshan.bhore.nuget\packages\microsoft.windows.sdk.net.ref\10.0.19041.31\lib\net6.0\WinRT.Runtime.dll CCApp C:\Users\roshan.bhore.nuget\packages\microsoft.windowsappsdk\1.5.240607001\buildTransitive\Microsoft.Build.Msix.Packaging.targets 1532

Any timeline for this issue?

Even though both your issue and the above have similar error messages, they are different issues. I think this might be fixed in the next release as we had a related fix in #1643. What is your projection structure? Is it a C# app and a C# library which is an authoring component or is it a C# native app?

[roshan27b]

I am using Winui3 package application, just wanted to add background task - but as it is currently impossible to integrate the same with class library with APPX1101 error