"Could not copy the file ..." error when using #6174
Description
Describe the bug
I've created a project following these instructions:
https://www.nuget.org/packages/Microsoft.WindowsAppSDK.ML/
If I build the project, it fails with below "Could not copy the file ..." error.
If I change 'Content Include="myIcon.ico"' to 'Content Update="myIcon.ico"' inside Business.csproj the project does build.
Adding a simple NuGet package (Microsoft.WindowsAppSDK.ML) should not mess up my build, and it should not want to copy my files from non-existing places.
Steps to reproduce the bug
- Install VisualStudio 2026 and .net10
- Unzip attached file
- Run this in x64 command prompt (or build with VisualStudio)
msbuild TestWindowsAppSdk.sln /p:Configuration=Debug /p:Platform="Any CPU" /t:build -restore
Error (full output attached):
C:\Program Files\Microsoft Visual Studio\18\Community\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets
(5381,5): error MSB3030: Could not copy the file "C:\codeother\TestWindowsAppSdk2\Business\bin\Debug\net10.0-windows10.
0.17763.0\Business\myIcon.ico" because it was not found. [C:\codeother\TestWindowsAppSdk2\Main\Main.csproj]
Expected behavior
Project should just build when adding Microsoft.WindowsAppSDK.ML NuGet.
Screenshots
No response
NuGet package version
Windows App SDK 1.8.4: 1.8.260101001
Packaging type
Unpackaged
Windows version
Windows 11 version 24H2 LTSC (26100, June Update)
IDE
Other
Additional context
No response