publish an app which reference a trim safe library but warning with il2026

[jingliancui]

Apple platform

iOS

Framework version

net10.0-*

Affected platform version

.net 10 latest version

Description

Background please see here
stef-k/MauiControlsExtras#283

MauiControlsExtras is config with safe trimming, but the sampleapp reference the nuget, then publish it using command, will shown 200+ warning about il2026.

Steps to Reproduce

1. cloned the source code from https://github.com/jingliancui/ExtrasComboBoxReleaseIssue
2. When you use command to publish the app
   dotnet publish -f net10.0-ios -p:ArchiveOnBuild=true -p:ApplicationTitle="SampleAppUAT" -p:ApplicationId="yourappid" -p:CodesignKey="yourcodesignkey" -p:CodesignProvision="yourcodesignprovision"
   Then 200+ warning about ILC : Trim analysis warning IL2026 shows

Did you find any workaround?

no

Build logs

please see the log from stef-k/MauiControlsExtras#283 (comment)

[rolfbjarne]

Build log snippet:

  SampleApp net10.0-ios ios-arm64 succeeded with 253 warning(s) (44.3s) → bin/Release/net10.0-ios/ios-arm64/SampleApp.dll
    ILC : Trim analysis warning IL2026: MauiControlsExtras.Controls.ComboBox.InitializeComponent(): Using member 'Microsoft.Maui.Controls.Xaml.Internals.XamlTypeResolver.XamlTypeResolver(IXmlNamespaceResolver,Assembly)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. Loading XAML at runtime might require types and members that cannot be statically analyzed. Make sure all of the required types and members are preserved.
    /Users/ericcui/Desktop/GitHubWorkspace/ExtrasComboBoxReleaseIssue/SampleApp/obj/Release/net10.0-ios/ios-arm64/linked/MauiControlsExtras.dll : warning IL3053: Assembly 'MauiControlsExtras' produced AOT analysis warnings.
    ILC : Trim analysis warning IL2026: MauiControlsExtras.Controls.ComboBox.InitializeComponent(): Using member 'Microsoft.Maui.Controls.Xaml.Internals.XamlTypeResolver.XamlTypeResolver(IXmlNamespaceResolver,Assembly)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. Loading XAML at runtime might require types and members that cannot be statically analyzed. Make sure all of the required types and members are preserved.

[...]

This looks related to MAUI, so moving there.

[LarsNymand]

Looks like this #34056 ?

[jingliancui]

Hi @jfversluis @PureWeen any idea on this issue please?
It impact the log output experience during publish phase, Thanks

[jfversluis]

Can you try the artifacts from this PR #34408

Either through the script in the comment or use maui-version

And let us know if that fixes it