Resolving Managed Vtable Types NotSupportedException with Telerik .NET MAUI SkiaSharp controls on Windows

Updated on Jul 22, 2025

Environment

Product

DataGrid, BusyIndicator, Gauge and other Telerik controls rendered through SkiaSharp

Description

This article describes how to resolve the following error on Windows:

bash

System.NotSupportedException: Managed vtable types (ie. containing any reference types) are not supported.

This exception occurs when:

• You are using any of the Telerik .NET MAUI SkiaSharp controls, such as DataGrid, BusyIndicator, Gauge; and

• you've updated Visual Studio 2022 to Version 17.11.5; or

• you're using the CommunityToolkit and have explicitly set the Windows SDK version in the .csproj file due to its requirement, such as:

XML

<WindowsSdkPackageVersion>10.0.19041.41</WindowsSdkPackageVersion>

Cause

The exception is related to a known issue in the SkiaSharp library with WindowsSdkPackageVersion 10.0.19041.38 and above:

https://github.com/mono/SkiaSharp/issues/2999

Solution

To resolve this issue, update the .NET Windows SDK version in your project. Modify the project file (.csproj) to include the following line, which specifies a version of the Windows SDK where the issue has been fixed:

XML

<WindowsSdkPackageVersion>10.0.19041.54</WindowsSdkPackageVersion>

By adding this line to your project file, you ensure that your application uses a version of the Windows SDK that includes the necessary fix for the NotSupportedException related to managed vtable types.

See Also

• GitHub Issue on SkiaSharp
• DataGrid Overview