Application Crash on Load with RadWebCam MFCreateDeviceSource failed with WIN32_ERROR_NOT_FOUND

Updated on Mar 20, 2026

Environment

Product	UI for WPF RadWebCam
Version	2025.4.1321

Description

I encountered an issue where my application crashes immediately on load after upgrading to the new RadWebCam control from the SharpDX version. The error message displayed is MFCreateDeviceSource failed: WIN32_ERROR_NOT_FOUND. The crash occurs before any source code execution, and troubleshooting steps such as validating the webcam functionality and permissions, creating a fresh test app, and revising NuGet dependencies did not resolve the issue.

Cause

The crash occurs due to the project's package management format being set to PackageReference, which leads to incomplete functionality of the Telerik NuGet package for the RadWebCam control. Additionally, the libSkiaSharp.dll file may not be correctly included during the publishing process.

Solution

To resolve the issue, follow these steps:

1. Change the project's NuGet package management format from PackageReference to Packages.config.
2. Ensure all required Telerik and SkiaSharp dependencies are correctly added to the project.
3. Verify the presence of libSkiaSharp.dll in the bin\x64 folder.
4. Manually include libSkiaSharp.dll in the publishing process, if necessary.

See Also

• RadWebCam Overview
• Telerik UI for WPF Documentation