Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

FeiyangLuo — Thu, 22 Feb 2024 20:47:26 GMT

mainmapview.xaml

```

<?xml version="1.0" encoding="utf-8" ?>
<ContentView xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
x:Class="iChat.MainMapView"
xmlns:esriUI="clr-namespace:Esri.ArcGISRuntime.Maui;assembly=Esri.ArcGISRuntime.Maui"
xmlns:esriTK="clr-namespace:Esri.ArcGISRuntime.Toolkit.Maui;assembly=Esri.ArcGISRuntime.Toolkit.Maui"
xmlns:local="clr-namespace:iChat">

<Button Text="{Binding ToggleCommandText}" Command="{Binding ToggleViewCommand}"
HorizontalOptions="End" VerticalOptions="Start"
Margin="0,10,10,0" WidthRequest="60" HeightRequest="30"/>

<ActivityIndicator x:Name="LoadingIndicator"
IsRunning="{Binding IsLoading}"
IsVisible="{Binding IsLoading}"
HorizontalOptions="CenterAndExpand"
VerticalOptions="CenterAndExpand" />
</Grid>
</ContentView>

If I remove line "<esriTK:Compass x:Name="MapViewCompass" GeoView="{Binding Source={x:Reference=ArcGisMapView}}" AutoHide="False" />" , it can work normally.

I already installed the nuget package Esri.ArcGISRuntime.Toolkit.Maui, why I got this error message:Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.

Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

FeiyangLuo — Thu, 22 Feb 2024 20:57:58 GMT

I solved it, I forgot to add UseArcGISToolkit() in MauiProgram.cs

Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

dotMorten_esri — Thu, 22 Feb 2024 22:01:01 GMT

Glad you figured it out. If you find this step annoying too, please go upvote this issue: https://github.com/dotnet/maui/issues/7258

Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

dotMorten_esri — Wed, 28 Feb 2024 16:59:09 GMT

We're currently experimenting with a code analyzer that'll help remind you to add this call. Would this be helpful?

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topic Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.' in .NET Maps SDK Questions

Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'

Re: Microsoft.Maui.Platform.HandlerNotFoundException: 'Handler not found for view Esri.ArcGISRuntime.Toolkit.Maui.Compass.'