Can't build for iOS simulator on arm64 Mac computer

[MichaelSL]

Describe the bug
When I try to build my application which uses LiveCharts2 for iOS Simulator on arm64 Mac I get the following error:

clang++ exited with code 1:
ld: building for iOS Simulator, but linking in dylib built for iOS, file '/Users/michael/Library/Caches/Xamarin/mtbs/builds/Tripsta/aeec817e023fc4d3a63619795aaa688cc328fc8828ed80ecf5ca133f3233a78d/C:/Users/Michael/.nuget/packages/skiasharp.nativeassets.ios/2.88.3/runtimes/ios/native/libSkiaSharp.framework/libSkiaSharp' for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)	Tripsta	C:\Program Files\dotnet\packs\Microsoft.iOS.Sdk\16.4.7060\targets\Xamarin.Shared.Sdk.targets	1274	

To Reproduce
Steps to reproduce the behavior:

1. Create a .NET MAUI Application
2. Reference LiveChartsCore.SkiaSharpView.Maui
3. Try to run your application on Simulator using Apple Silicon ARM64 Mac machine as a build host
4. See error

Expected behavior
The application is built successfully and started on Simulator

Screenshots
N/A

Desktop (please complete the following information):

• OS: Windows 11 with Visual Studio + MacOSX Ventura 13.4 as a build host

Smartphone (please complete the following information):

• Device: Simulator
• OS: iOS16.4

Additional context
Build still works for:

• physical device
• for Simulator if using Intel based Mac as a build host

[beto-rodriguez]

Thanks for the report, it seems that the SkiaSharp team already got this, this should be fixed with mono/SkiaSharp#2468 in a future version of LiveCharts we will reference a version that contains that fix.

We can also track this issue at mono/SkiaSharp#2307.

I will keep this open as reminder to update that.

[mattleibow]

I merged the change, there should be an update appearing in a few hours on the preview feed: https://aka.ms/skiasharp-eap/index.json

[beto-rodriguez]

thanks for the update! @mattleibow

[maslewandowski]

Does skiasharp generally work on ios devices? I tried to get it working with the startup documentation but unfortunately, it works on android emulator but not on ipad pro deployed via usb / hot restart.

[beto-rodriguez]

@maslewandowski SkiaSharp works on IOS, the problem seems to be in this library, probably related to #800, I am trying to fix that for the next release.

[MichaelSL]

Updated LiveChartsCore.SkiaSharpView.Maui from 2.0.0-beta.701 to 2.0.0-beta.810 - issue is still reproducable.
Real devise (iPhone) deploy still works

[beto-rodriguez]

@MichaelSL version beta.850 uses the latest version of SkiaSharp, it should be fixed on that version, is it working for you?

[MichaelSL]

@beto-rodriguez I can confirm beta.850 fixed the issue with simulator, app build ok and launches on simulator.

It broke my custom gauge though ;)

[beto-rodriguez]

we can track that in another issue, thanks for the feedback! feel free to open a new issue with the case!

[MichaelSL]

@beto-rodriguez yep, sure; this one is fixed and should be closed. I think my issue is because I was scaling the graph according to screen density and you've added the inbuilt scaling support in 850.1. Most likely I'll just have to remove my scaling and it should work. Not sure it needs an issue, maybe just mention that somewhere so folks who scaled manually would know.

[beto-rodriguez]

yes, Livecharts for Maui now looks better on different devices