NativeEmbeddingDemo doesn't work.

Thank you @davidbritch for the examples at https://github.com/dotnet/maui-samples/tree/main/8.0/PlatformIntegration/NativeEmbeddingDemo

I'm currently migrating an Xamarin.iOS/Xamarin.Android application to net8.0-ios/android.
I would like to see how I could implement some MAUI controls into this application and found this sample, which looks exactly what I want.
However the Android/iOS samples does not work.
I get this error on Android:
```
[0:] Microsoft.Maui.FontManager: Warning: Unable to load font 'OpenSans-Regular.ttf' from assets.

Java.Lang.RuntimeException: Font asset not found OpenSans-Regular.ttf
at Java.Interop.JniEnvironment.StaticMethods.CallStaticObjectMethod(JniObjectReference type, JniMethodInfo method, JniArgumentValue* args) in /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/obj/Release/net7.0/JniEnvironment.g.cs:line 21452
at Java.Interop.JniPeerMembers.JniStaticMethods.InvokeObjectMethod(String encodedMember, JniArgumentValue* parameters) in /Users/runner/work/1/s/xamarin-android/external/Java.Interop/src/Java.Interop/Java.Interop/JniPeerMembers.JniStaticMethods.cs:line 165
at Android.Graphics.Typeface.CreateFromAsset(AssetManager mgr, String path) in /Users/runner/work/1/s/xamarin-android/src/Mono.Android/obj/Release/net8.0/android-34/mcw/Android.Graphics.Typeface.cs:line 637
at Microsoft.Maui.FontManager.LoadTypefaceFromAsset(String fontfamily, Boolean warning) in D:\a\_work\1\s\src\Core\src\Fonts\FontManager.Android.cs:line 123
--- End of managed Java.Lang.RuntimeException stack trace ---
java.lang.RuntimeException: Font asset not found OpenSans-Regular.ttf
at android.graphics.Typeface.createFromAsset(Typeface.java:1061)
at crc647e519ad4bad0e093.MainActivity.n_onCreate(Native Method)
at crc647e519ad4bad0e093.MainActivity.onCreate(MainActivity.java:30)
at android.app.Activity.performCreate(Activity.java:8595)
at android.app.Activity.performCreate(Activity.java:8573)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1456)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3764)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3922)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:139)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:96)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2443)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:205)
at android.os.Looper.loop(Looper.java:294)
at android.app.ActivityThread.main(ActivityThread.java:8177)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:971)

--- End of managed Java.Lang.RuntimeException stack trace ---
java.lang.RuntimeException: Font asset not found OpenSans-Regular.ttf
at android.graphics.Typeface.createFromAsset(Typeface.java:1061)
at crc647e519ad4bad0e093.MainActivity.n_onCreate(Native Method)
at crc647e519ad4bad0e093.MainActivity.onCreate(MainActivity.java:30)
at android.app.Activity.performCreate(Activity.java:8595)
at android.app.Activity.performCreate(Activity.java:8573)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1456)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3764)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3922)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:103)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:139)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:96)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2443)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loopOnce(Looper.java:205)
at android.os.Looper.loop(Looper.java:294)
at android.app.ActivityThread.main(ActivityThread.java:8177)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:971)
[MaterialButton] MaterialButton manages its own background to control elevation, shape, color and states. Consider using backgroundTint, shapeAppearance and other attributes where available. A custom background will ignore these attributes and you should consider handling interaction states such as pressed, focused and disabled
[CompatibilityChangeReporter] Compat change id reported: 237531167; UID 10182; state: DISABLED
[OpenGLRenderer] Unknown dataspace 0
[Choreographer] Skipped 76 frames! The application may be doing too much work on its main thread.
[OpenGLRenderer] Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
[OpenGLRenderer] Failed to initialize 101010-2 format, error = EGL_SUCCESS
[Gralloc4] mapper 4.x is not supported
[OpenGLRenderer] Unable to match the desired swap behavior.
Thread started: .NET Timer #5
[Glide] Load failed for [dotnet_bot.png] with dimensions [871x509]
[Glide] class com.bumptech.glide.load.engine.GlideException: Failed to load resource
[Glide] There were 3 root causes:
[Glide] java.io.FileNotFoundException(/dotnet_bot.png: open failed: ENOENT (No such file or directory))
[Glide] java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
[Glide] java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 3): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class java.io.InputStream, LOCAL
[Glide] There was 1 root cause:
[Glide] java.io.FileNotFoundException(/dotnet_bot.png: open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 1): class com.bumptech.glide.load.engine.GlideException: Fetch failed
[Glide] There was 1 root cause:
[Glide] java.io.FileNotFoundException(/dotnet_bot.png: open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 1): class java.io.FileNotFoundException: /dotnet_bot.png: open failed: ENOENT (No such file or directory)
[Glide] Cause (2 of 3): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class android.os.ParcelFileDescriptor, LOCAL
[Glide] There was 1 root cause:
[Glide] java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 1): class com.bumptech.glide.load.engine.GlideException: Fetch failed
[Glide] There was 1 root cause:
[Glide] java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 1): class java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
[Glide] Cause (3 of 3): class com.bumptech.glide.load.engine.GlideException: Fetching data failed, class android.content.res.AssetFileDescriptor, LOCAL
[Glide] There was 1 root cause:
[Glide] java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 1): class com.bumptech.glide.load.engine.GlideException: Fetch failed
[Glide] There was 1 root cause:
[Glide] java.io.FileNotFoundException(open failed: ENOENT (No such file or directory))
[Glide] call GlideException#logRootCauses(String) for more detail
[Glide] Cause (1 of 1): class java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
[OpenGLRenderer] Davey! duration=1419ms; Flags=1, FrameTimelineVsyncId=35186, IntendedVsync=21020586168537, Vsync=21021852835153, InputEventId=0, HandleInputStart=21021856642791, AnimationStart=21021856645620, PerformTraversalsStart=21021856886831, DrawStart=21021927085481, FrameDeadline=21020602835203, FrameInterval=21021856272143, FrameStartTime=16666666, SyncQueued=21021943902737, SyncStart=21021944924305, IssueDrawCommandsStart=21021945682961, SwapBuffers=21021982637391, FrameCompleted=21022006370135, DequeueBufferDuration=2662, QueueBufferDuration=141899, GpuCompleted=21022006370135, SwapBuffersCompleted=21021989800530, DisplayPresentTime=0, CommandSubmissionCompleted=21021982637391,
[Glide] Root cause (1 of 3)
[Glide] java.io.FileNotFoundException: /dotnet_bot.png: open failed: ENOENT (No such file or directory)
[Glide] at libcore.io.IoBridge.open(IoBridge.java:574)
[Glide] at java.io.FileInputStream.(FileInputStream.java:160)
[Glide] at java.io.FileInputStream.(FileInputStream.java:115)
[Glide] at android.content.ContentResolver.openInputStream(ContentResolver.java:1526)
[Glide] at com.bumptech.glide.load.data.StreamLocalUriFetcher.loadResourceFromUri(StreamLocalUriFetcher.java:74)
[Glide] at com.bumptech.glide.load.data.StreamLocalUriFetcher.loadResource(StreamLocalUriFetcher.java:50)
[Glide] at com.bumptech.glide.load.data.StreamLocalUriFetcher.loadResource(StreamLocalUriFetcher.java:13)
[Glide] at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:44)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:95)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:88)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:311)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:280)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:235)
[Glide] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[Glide] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
[Glide] at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:424)
[Glide] at java.lang.Thread.run(Thread.java:1012)
[Glide] at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultPriorityThreadFactory$1.run(GlideExecutor.java:383)
[Glide] Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
[Glide] at libcore.io.Linux.open(Native Method)
[Glide] at libcore.io.ForwardingOs.open(ForwardingOs.java:563)
[Glide] at libcore.io.BlockGuardOs.open(BlockGuardOs.java:274)
[Glide] at libcore.io.ForwardingOs.open(ForwardingOs.java:563)
[Glide] at android.app.ActivityThread$AndroidOs.open(ActivityThread.java:8063)
[Glide] at libcore.io.IoBridge.open(IoBridge.java:560)
[Glide] ... 18 more
[Glide] Root cause (2 of 3)
[Glide] java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
[Glide] at android.os.ParcelFileDescriptor.openInternal(ParcelFileDescriptor.java:351)
[Glide] at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:230)
[Glide] at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1853)
[Glide] at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1773)
[Glide] at com.bumptech.glide.load.data.FileDescriptorLocalUriFetcher.loadResource(FileDescriptorLocalUriFetcher.java:20)
[Glide] at com.bumptech.glide.load.data.FileDescriptorLocalUriFetcher.loadResource(FileDescriptorLocalUriFetcher.java:12)
[Glide] at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:44)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:95)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:88)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:311)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:416)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:223)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:108)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.startNextOrFail(MultiModelLoader.java:167)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.onLoadFailed(MultiModelLoader.java:154)
[Glide] at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:50)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:95)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:88)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:311)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:280)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:235)
[Glide] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[Glide] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
[Glide] at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:424)
[Glide] at java.lang.Thread.run(Thread.java:1012)
[Glide] at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultPriorityThreadFactory$1.run(GlideExecutor.java:383)
[Glide] Root cause (3 of 3)
[Glide] java.io.FileNotFoundException: open failed: ENOENT (No such file or directory)
[Glide] at android.os.ParcelFileDescriptor.openInternal(ParcelFileDescriptor.java:351)
[Glide] at android.os.ParcelFileDescriptor.open(ParcelFileDescriptor.java:230)
[Glide] at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1853)
[Glide] at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:1773)
[Glide] at com.bumptech.glide.load.data.AssetFileDescriptorLocalUriFetcher.loadResource(AssetFileDescriptorLocalUriFetcher.java:20)
[Glide] at com.bumptech.glide.load.data.AssetFileDescriptorLocalUriFetcher.loadResource(AssetFileDescriptorLocalUriFetcher.java:11)
[Glide] at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:44)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:95)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:88)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:311)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:416)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:223)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:108)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.startNextOrFail(MultiModelLoader.java:167)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.onLoadFailed(MultiModelLoader.java:154)
[Glide] at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:50)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:95)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:88)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:311)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.onDataFetcherFailed(DecodeJob.java:416)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.onLoadFailedInternal(SourceGenerator.java:223)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator$1.onLoadFailed(SourceGenerator.java:108)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.startNextOrFail(MultiModelLoader.java:167)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.onLoadFailed(MultiModelLoader.java:154)
[Glide] at com.bumptech.glide.load.data.LocalUriFetcher.loadData(LocalUriFetcher.java:50)
[Glide] at com.bumptech.glide.load.model.MultiModelLoader$MultiFetcher.loadData(MultiModelLoader.java:100)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNextLoad(SourceGenerator.java:95)
[Glide] at com.bumptech.glide.load.engine.SourceGenerator.startNext(SourceGenerator.java:88)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runGenerators(DecodeJob.java:311)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.runWrapped(DecodeJob.java:280)
[Glide] at com.bumptech.glide.load.engine.DecodeJob.run(DecodeJob.java:235)
[Glide] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[Glide] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
[Glide] at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultThreadFactory$1.run(GlideExecutor.java:424)
[Glide] at java.lang.Thread.run(Thread.java:1012)
[Glide] at com.bumptech.glide.load.engine.executor.GlideExecutor$DefaultPriorityThreadFactory$1.run(GlideExecutor.java:383)
[Glide] Load failed for [crc6488302ad6e9e4df1a.ImageLoaderCallback@77743ec] with dimensions [871x509]
[Glide] class com.bumptech.glide.load.engine.GlideException: Failed to load resource
Thread started: #6
Thread started: .NET TP Gate #7
Thread started: #8
[monodroid-assembly] open_from_bundles: failed to load assembly System.Xml.XmlSerializer.dll
Loaded assembly: /data/data/com.companyname.nativeembeddingdemo/files/.__override__/System.Xml.XmlSerializer.dll [External]
**System.ArgumentNullException:** 'Value cannot be null. (Parameter 'key')'

[ProfileInstaller] Installing profile for com.companyname.nativeembeddingdemo
Thread finished: #8
The thread 8 has exited with code 0 (0x0).
[mono-rt] [ERROR] FATAL UNHANDLED EXCEPTION: System.ArgumentNullException: Value cannot be null. (Parameter 'key')
[mono-rt] at System.ThrowHelper.ThrowArgumentNullException(String name)
[mono-rt] at System.ThrowHelper.ThrowKeyNullException()
[mono-rt] at System.Collections.Concurrent.ConcurrentDictionary`2[[Microsoft.Maui.Dispatching.IDispatcher, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.XamlHotReload.VisualTreeService.VisualTree.DispatcherVisualTreeContext, Microsoft.Maui.Controls.HotReload.Forms, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].GetOrAdd(IDispatcher key, Func`2 valueFactory)
[mono-rt] at Microsoft.XamlHotReload.VisualTreeService.VisualTree.VisualTreeContextBase.GetDispatcherContext(IDispatcher dispatcher) in D:\a\_work\1\s\HotReload\Source\Xamarin.HotReload.Xaml\VisualTreeService\VisualTree\VisualTreeContextBase.cs:line 64
[mono-rt] at Microsoft.XamlHotReload.VisualTreeService.VisualTree.FormsVisualTreeContext.<>c__DisplayClass12_0.b__0() in D:\a\_work\1\s\HotReload\Source\Xamarin.HotReload.Xaml\VisualTreeService\VisualTree\FormsVisualTreeContext.cs:line 58
[mono-rt] at Microsoft.XamlHotReload.Utility.DispatcherExtensions.<>c__DisplayClass3_0.b__0() in D:\a\_work\1\s\HotReload\Source\Microsoft.Maui.Controls.HotReload.Forms\MauiDispatcherExtensions.cs:line 36
[mono-rt] at Microsoft.XamlHotReload.Utility.DispatcherExtensions.<>c__DisplayClass4_0`1[[System.Boolean, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].b__1() in D:\a\_work\1\s\HotReload\Source\Microsoft.Maui.Controls.HotReload.Forms\MauiDispatcherExtensions.cs:line 53
[mono-rt] --- End of stack trace from previous location ---
[mono-rt] at Microsoft.XamlHotReload.Utility.DispatcherExtensions.Invoke(IDispatcher dispatcher, Action callback) in D:\a\_work\1\s\HotReload\Source\Microsoft.Maui.Controls.HotReload.Forms\MauiDispatcherExtensions.cs:line 17
[mono-rt] at Microsoft.XamlHotReload.VisualTreeService.VisualTree.FormsVisualTreeContext.SubscribeToVisualTreeChanges() in D:\a\_work\1\s\HotReload\Source\Xamarin.HotReload.Xaml\VisualTreeService\VisualTree\FormsVisualTreeContext.cs:line 57
[mono-rt] at Microsoft.XamlHotReload.VisualTreeService.VisualTree.FormsVisualTreeContext.<.ctor>b__2_0(EmptyRequestInfo _) in D:\a\_work\1\s\HotReload\Source\Xamarin.HotReload.Xaml\VisualTreeService\VisualTree\FormsVisualTreeContext.cs:line 30
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass34_0`1[[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.EmptyRequestInfo, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=null]].b__0(EmptyRequestInfo message)
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.HandleMessage[EmptyRequestInfo,ResponseWithError](Func`2 callback, Message request)
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass35_0`2[[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.EmptyRequestInfo, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.ResponseWithError, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=null]].b__0(Message message)
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.ProcessInboundMessage(Message message)
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass48_0.b__0()
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.WaitableActionsList.<>c__DisplayClass8_0.b__0(Boolean isCancelled)
[mono-rt] at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.ActionThread(Object list)
[mono-rt] at System.Threading.Thread.StartCallback()

```

On iOS I get this error:

```
[0:] Microsoft.Maui.FileImageSourceService: Warning: Unable to load image file 'dotnet_bot.png'.

System.InvalidOperationException: Unable to load image file.
at Microsoft.Maui.FileImageSourceService.GetImageAsync(IFileImageSource imageSource, Single scale, CancellationToken cancellationToken)
[0:] Microsoft.Maui.FontRegistrar: Warning: Unable to load font 'OpenSansRegular'.

System.IO.FileNotFoundException: Native font with the name OpenSans-Regular.ttf was not found.
at Microsoft.Maui.FontRegistrar.GetNativeFontStream(String filename, String alias)
at Microsoft.Maui.FontRegistrar.LoadNativeAppFont(String font, String filename, String alias)
at Microsoft.Maui.FontRegistrar.GetFont(String font)
Thread started: .NET Timer #5
Thread started: #6
Thread started: .NET TP Gate #7
Thread started: #8
Loaded assembly: /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/System.Xml.XmlSerializer.dll [External]
**System.ArgumentNullException:** 'Value cannot be null. (Parameter 'key')'

2024-03-25 15:15:57.893749+0100 NativeEmbeddingDemo.iOS[70361:9535933]
Unhandled Exception:
System.ArgumentNullException: Value cannot be null. (Parameter 'key')
at System.ThrowHelper.ThrowArgumentNullException(String name)
at System.ThrowHelper.ThrowKeyNullException()
at System.Collections.Concurrent.ConcurrentDictionary`2[[Microsoft.Maui.Dispatching.IDispatcher, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.DispatcherVisualTreeContext, Microsoft.Maui.Controls.HotReload.Forms, Version=17.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].GetOrAdd(IDispatcher key, Func`2 valueFactory)
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.VisualTreeContextBase.GetDispatcherContext(IDispatcher dispatcher)
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.FormsVisualTreeContext.<>c__DisplayClass9_0.b__0()
at M
icrosoft.VisualStudio.DesignTools.MobileTap.DispatcherExtensions.<>c__DisplayClass3_0.b__0()
at Microsoft.VisualStudio.DesignTools.MobileTap.DispatcherExtensions.<>c__DisplayClass4_0`1[[System.Boolean, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].b__1()
--- End of stack trace from previous location ---
at Microsoft.VisualStudio.DesignTools.MobileTap.DispatcherExtensions.Invoke(IDispatcher dispatcher, Action callback)
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.FormsVisualTreeContext.SubscribeToVisualTreeChanges()
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.FormsVisualTreeContext.<.ctor>b__2_0(EmptyRequestInfo _)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass34_0`1[[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.EmptyRequestInfo, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neu
tral, PublicKeyToken=b03f5f7f11d50a3a]].b__0(EmptyRequestInfo message)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.HandleMessage[EmptyRequestInfo,ResponseWithError](Func`2 callback, Message request)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass35_0`2[[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.EmptyRequestInfo, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a],[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.ResponseWithError, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].b__0(Message message)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.ProcessInboundMessage(Message message)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass48_0.b__0()
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.WaitableActionsList.<>c__DisplayClass8_0.b__0(Boolean isCancelled)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.ActionThread(Object list)
at System.Threading.Thread.StartCallback()
2024-03-25 15:15:57.897540+0100 NativeEmbeddingDemo.iOS[70361:9535933] Unhandled managed exception: Value cannot be null. (Parameter 'key') (System.ArgumentNullException)
at System.ThrowHelper.ThrowArgumentNullException(String name)
at System.ThrowHelper.ThrowKeyNullException()
at System.Collections.Concurrent.ConcurrentDictionary`2[[Microsoft.Maui.Dispatching.IDispatcher, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.DispatcherVisualTreeContext, Microsoft.Maui.Controls.HotReload.Forms, Version=17.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].GetOrAdd(IDispatcher key, Func`2 valueFactory)
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.VisualTreeContextBase.GetDispatcherContext(IDispatcher dispatcher)
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.FormsVisualTreeContext.<>c__DisplayClass9_0.b__0()

at Microsoft.VisualStudio.DesignTools.MobileTap.DispatcherExtensions.<>c__DisplayClass3_0.b__0()
at Microsoft.VisualStudio.DesignTools.MobileTap.DispatcherExtensions.<>c__DisplayClass4_0`1[[System.Boolean, System.Private.CoreLib, Version=8.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].b__1()
--- End of stack trace from previous location ---
at Microsoft.VisualStudio.DesignTools.MobileTap.DispatcherExtensions.Invoke(IDispatcher dispatcher, Action callback)
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.FormsVisualTreeContext.SubscribeToVisualTreeChanges()
at Microsoft.VisualStudio.DesignTools.MobileTap.VisualTreeService.VisualTree.FormsVisualTreeContext.<.ctor>b__2_0(EmptyRequestInfo _)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass34_0`1[[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.EmptyRequestInfo, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Cul
ture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].b__0(EmptyRequestInfo message)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.HandleMessage[EmptyRequestInfo,ResponseWithError](Func`2 callback, Message request)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass35_0`2[[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.EmptyRequestInfo, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a],[Microsoft.VisualStudio.DesignTools.TapContract.TapOM.ResponseWithError, Microsoft.VisualStudio.DesignTools.TapContract, Version=17.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a]].b__0(Message message)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.ProcessInboundMessage(Message message)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.<>c__DisplayClass48_0.b__0()
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.WaitableActionsList.<>c__DisplayClass8_0.b__0(Boolean isCancelled)
at Microsoft.VisualStudio.DesignTools.TapContract.Networking.ProtocolHandler.ActionThread(Object list)
at System.Threading.Thread.StartCallback()

=================================================================
Native Crash Reporting
=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

=================================================================
Native stacktrace:
=================================================================
0x102dd40a0 - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libmonosgen-2.0.dylib : mono_dump_native_crash_info
0x102d8428c - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libmonosgen-2.0.dylib : mono_handle_native_crash
0x1030a6bc8 - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libmonosgen-2.0.dylib : sigabrt_signal_handler.cold.1
0x102dd3960 - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libmonosgen-2.0.dylib : mono_runtime_setup_stat_profiler
0x1011dfc60 - /usr/lib/system/libsystem_platform.dylib : _sigtramp
0x1012571d0 - /usr/lib/system/libsystem_pthread.dylib : pthread_kill
0x1801605cc - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/usr/lib/system/libsystem_c.dylib : abort
0x102333098 - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libxamarin-dotnet-debug.dylib : xamarin_find_protocol_wrapper_type
0x102e610c4 - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libmonosgen-2.0.dylib : mono_invoke_unhandled_exception_hook
0x102ec38b4 - /Users/rum327/Library/Developer/CoreSimulator/Devices/B92C26C9-D9EF-4FA7-BDDF-2D67B5EEA13F/data/Containers/Bundle/Application/E8BCAF27-2809-467F-88F1-7D6D92D75FBF/NativeEmbeddingDemo.iOS.app/libmonosgen-2.0.dylib : start_wrapper
0x1012574c0 - /usr/lib/system/libsystem_pthread.dylib : _pthread_start
0x1012526f0 - /usr/lib/system/libsystem_pthread.dylib : thread_start

=================================================================
Basic Fault Address Reporting
=================================================================
Memory around native instruction pointer (0x1022749ec):0x1022749dc c0 03 5f d6 c0 03 5f d6 10 29 80 d2 01 10 00 d4 .._..._..)..
....
0x1022749ec e3 00 00 54 fd 7b bf a9 fd 03 00 91 ce e2 ff 97
...T.{..........
0x1022749fc bf 03 00 91 fd 7b c1 a8 c0 03 5f d6 c0
03 5f d6 .....{...._..._.
0x102274a0c 70 0a
80 d2 01 10 00 d4 e3 00 00 54 fd 7b bf a9 p..........
T.{..

=================================================================
Managed Stacktrace:
=================================================================
=================================================================
```

Any ideas @davidbritch @jfversluis ? 😊