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Unable to copy file "libman.json" building MAUI, BLazor IOS app

Dan Taxbøl 20 Reputation points
2024-10-07T13:12:31.76+00:00

I am trying to build a MAUI Blazor project for iOS. The Windows and Android builds work fine. I have upgraded to SDK 8.0.402.1 for both the SDK and workload to ensure compatibility with iOS 18 and Xcode 16. However, I am encountering the following error and cannot figure out where it is coming from:

Unable to copy file "libman.json" to "c:\Temp\U\Xamarin\HotRestart\Bundles\1.1.7.0\06bfa05d\DrivePerspective.Mobile.app\D:\Gitrepo\DrivePerspective\DrivePerspective.Mobile\libman.json" dotnet --version

8.0.402 dotnet sdk check

.NET SDKs:

Version      Status                    

7.0.410      .NET 7.0 is out of support.

8.0.400      Patch 8.0.402 is available.

8.0.402      Up to date.               

 

Try out the newest .NET SDK features with .NET 9.0.100-rc.1.24452.12.

 

dotnet workload list

 

Workload version: 8.0.402.1

Thanks

Blazor
Blazor
A free and open-source web framework that enables developers to create web apps using C# and HTML being developed by Microsoft.
1,584 questions
.NET MAUI
.NET MAUI
A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
3,540 questions
Accepted answer
  1. Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 31,976 Reputation points Microsoft Vendor
    2024-10-09T02:30:18.9166667+00:00

    Hello,

    Please add the following in .csproj file:

     <Target Name="_LibraryManagerRestoreContentItems" AfterTargets="LibraryManagerRestore">
    <ItemGroup>
      <Content Remove="@(FilesForPackagingFromProject)" />
      <Content Include="@(FilesForPackagingFromProject)" CopyToPublishDirectory="PreserveNewest" />
    </ItemGroup>
  </Target>

    it seems the only option now is to wait for VS 17.11.5, right?

    There is a known issue- [Blazor] libman libraries not included in first build · Issue #680 · aspnet/LibraryManager (github.com), please follow the progress, and you could post comments to let them know your concerns.

    Best Regards,

    Wenyan Zhang

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