Problem with net7. Not compiling.

[chmorell]

Hi Flash,

Thank you for you great work !
I am trying to upgrade from Swift (v3.2.2.1) to net7 or net8 (v3.2.2.2).

I have the error with net8 (a similar error occurs with net7).

Erreur (active) clang++ a quitté avec le code 1:
ld: warning: ignoring duplicate libraries: '-lSystem.IO.Compression.Native', '-lSystem.Native', '-lSystem.Net.Security.Native', '-lSystem.Security.Cryptography.Native.Apple', '-lc++', '-lcompression', '-lmono-component-debugger', '-lmono-component-diagnostics_tracing', '-lmono-component-hot_reload', '-lmonosgen-2.0', '-lxamarin-dotnet-debug', '-lz'
ld: building for 'iOS-simulator', but linking in dylib (/Users/fabienmoreau/Library/Caches/Xamarin/mtbs/builds/MVision.iOS/1fd66010e0275ee7c7197dca6be4ba171c0cbd38c3b9a7f29d512b5218505917/C:/Users/XM5998/.nuget/packages/ioscharts/3.2.2.2/lib/net7.0-ios16.1/iOSCharts.resources/Charts.framework/Charts) built for 'iOS'
clang: error: linker command failed with exit code 1 (use -v to see invocation) MVision.iOS C:\Program Files\dotnet\packs\Microsoft.iOS.Sdk\16.4.7142\targets\Xamarin.Shared.Sdk.targets 1276

It seems to come from your library.
Have you a solution or a workaround ?
Best regards
Christophe.

[EugeneUr]

Were you able to resolve this issue? I am able to compile on .net7 but when i try to compile against .net8 i get

0>Xamarin.Shared.Sdk.targets(1641,3): Error : clang++ exited with code 1:
ld: building for iOS Simulator, but linking in dylib built for iOS, file '~/.nuget/packages/ioscharts/3.2.2.2/lib/net7.0-ios16.1/iOSCharts.resources/Charts.framework/Charts' for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

[Flash3001]

@EugeneUr this version of the library is not built to include arm64 for the simulator. The workaround for it is to make sure NET8 is building the x86 version of the app for Simulator even if you are running on a arm64 Mac.

To do that you can try to find in your .csproj or .csproj.user something close to

  <PropertyGroup Condition="'$(TargetPlatformIdentifier)'=='iOS'">
    <RuntimeIdentifier>iossimulator-arm64</RuntimeIdentifier>
    <PlatformTarget>arm64</PlatformTarget>
  </PropertyGroup>

and replace by

  <PropertyGroup Condition="'$(TargetPlatformIdentifier)'=='iOS'">
    <RuntimeIdentifier>iossimulator-x64</RuntimeIdentifier>
    <PlatformTarget>x64</PlatformTarget>
  </PropertyGroup>

Ideally we should rebuild the library to include the simulator arm64 version. I have not checked if it is possible to do using the current version of the library or if we will have to upgrade to the newest release - this would mean recreating the entire ApiDefinition.cs file.

[EugeneUr]

i had to upgrade some very old binding to MAUI and it was pretty straight forward, didn't have to regenerate ApiDefinition.cs