Cannot nativeaot compile hello world

[whisperecean]

Apple platform

macOS

Framework version

net10.0-*

Affected platform version

net10.0-macos,xcode26.1.1

Description

Restore complete (0.2s) test_macos net10.0-macos osx-x64 failed with 4 error(s) (0.7s) → bin/Release/net10.0-macos/osx-x64/test_macos.dll ILLink : MacOSX error IL7000: An error occurred while executing the custom linker steps. Please review the build log for more information. ILLINK : error MM0099: No platform assembly! ILLINK : error MM2430: The linker step 'ManagedRegistrar' failed during processing: No platform assembly! /Users/dvu/.nuget/packages/microsoft.net.illink.tasks/10.0.1/build/Microsoft.NET.ILLink.targets(103,5): error NETSDK1144: Optimizing assemblies for size failed.

class MainClass {
    static void Main() {
        Console.WriteLine("Hello World!");
    }
}

with

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net10.0-macos</TargetFramework>
    <ApplicationId>com.example.testmacos</ApplicationId>
		<PublishAot>true</PublishAot>
		<UseAppHost>true</UseAppHost>
  </PropertyGroup>

</Project>

workload installed:
macos 26.1.10502/10.0.100 SDK 10.0.100
xcode installed:
sudo xcode-select -s /Applications/Xcode-26.1.1.app/Contents/Developer
dotnet runtimes:
Microsoft.AspNetCore.App 10.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 10.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

What am I doing wrong?

Steps to Reproduce

1. create a new hello world
2. try to compile nativeaot with net10.0-macos

Did you find any workaround?

No response

Build logs

No response

[rolfbjarne]

This happens because there's no reference to the Microsoft.macOS.dll assembly once the project has been trimmed.

The fix is to do anything that references anything from Microsoft.macOS.dll, for instance:

class MainClass {
    static void Main() {
        Console.WriteLine("Hello World!");
		Console.WriteLine("NSObject: " + typeof (NSObject).FullName);
    }
}

Keeping this open to show a better error message.

[whisperecean]

I can compile the app now but It gets killed immediatelly after trying to run it with exit code 137.