System.TypeLoadException for DropShadow

Question

Trying out the HeaderedTextBlock control in the UWP-Community-toolkit, I get
'System.TypeLoadException' occurred in Microsoft.Toolkit.Uwp.UI.Controls.dll
Additional information: Could not find Windows Runtime type 'Windows.UI.Composition.DropShadow'.

StackTrace

   at Microsoft.Toolkit.Uwp.UI.Controls.Microsoft_Toolkit_Uwp_UI_Controls_XamlTypeInfo.XamlTypeInfoProvider.InitTypeTables()
   at Microsoft.Toolkit.Uwp.UI.Controls.Microsoft_Toolkit_Uwp_UI_Controls_XamlTypeInfo.XamlTypeInfoProvider.LookupTypeIndexByName(String typeName)
   at Microsoft.Toolkit.Uwp.UI.Controls.Microsoft_Toolkit_Uwp_UI_Controls_XamlTypeInfo.XamlTypeInfoProvider.GetXamlTypeByName(String typeName)
   at Microsoft.Toolkit.Uwp.UI.Controls.Microsoft_Toolkit_Uwp_UI_Controls_XamlTypeInfo.XamlMetaDataProvider.GetXamlType(String fullName)
   at Test_uwp.Test_uwp_XamlTypeInfo.XamlTypeInfoProvider.CheckOtherMetadataProvidersForName(String typeName)
   at Test_uwp.Test_uwp_XamlTypeInfo.XamlTypeInfoProvider.GetXamlTypeByName(String typeName)
   at Test_uwp.App.GetXamlType(String fullName)

Where
typeName: Windows.UI.Composition.DropShadow and
fullName: Microsoft.Toolkit.Uwp.UI.Controls.HamburgerMenu

Where is HamburgerMenu even coming from?

MainPage.xaml

<Page
x:Class="Test_uwp.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:Test_uwp"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:controls="using:Microsoft.Toolkit.Uwp.UI.Controls"
mc:Ignorable="d">

    <Grid>
        <controls:HeaderedTextBlock 
            Header="Name"
            Text="UWP Toolkit"
            Orientation="Vertical"
            Margin="20,10,0,0" />
    </Grid>
</Page>

MainPage.xaml.cs

namespace Test_uwp
{
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }
    }
}

I got the same exception with RadialGuage.
Toolkit version: 1.2.0

Answer 1

I followed the getting Started with the UWP Toolkit page to setup uwp community toolkit. It worked well in my side.

Please check if your environment achieve the requirement:

1. Ensure you choose the custom install option and select the Universal Windows App Development Tools
2. Build 10586 or higher is supported by current version of the Toolkit.

You could also run the source code sample in your side, if the environment has no problems, it should work.

If you have any other concern regarding this issue, please feel free to let me know.