Resolve Telerik.Licensing.Runtime Binding Redirect Errors in .NET Framework

Updated on Sep 25, 2026

Environment

Product Version	2025.1.211 and later
Product	UI for WPF

Description

A .NET Framework application can build successfully but throw a FileLoadException at runtime when the referenced Telerik.Licensing.Runtime assembly version differs from the version expected by the Telerik UI for WPF assemblies. Modern .NET applications do not require this configuration because the runtime resolves this dependency without application configuration binding redirects.

This may occur after you upgrade to 2025 Q1 or later, which use the Telerik licensing mechanism and require a reference to Telerik.Licensing.Runtime.

Cause

The .NET Framework loader uses the assembly version recorded in the Telerik UI for WPF assembly reference. Installing a newer Telerik.Licensing NuGet package or manually referencing a newer Telerik.Licensing.Runtime.dll changes the available licensing version, but it does not automatically make that newer version satisfy the original assembly reference when binding redirects are disabled or absent. Modern .NET projects handle this dependency resolution without an application configuration binding redirect.

Solution

Add a binding-redirect to your project when using a different Telerik.Licensing package version in a .NET Framework application. Enable automatic binding-redirect generation. This adds the required redirect to the generated application configuration file.

1. Remove <AutoGenerateBindingRedirects>false</AutoGenerateBindingRedirects> from the project file, or set it to true:

XML

<PropertyGroup>
  <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
</PropertyGroup>

2. Clean and rebuild the application, then verify that the generated <application>.exe.config file contains a binding redirect for Telerik.Licensing.Runtime to the version installed in the project.

For .NET Framework applications that manage redirects manually, add the redirect to the application configuration file. This example redirects requests through version 1.9.2.0 to the Telerik.Licensing.Runtime version installed in the application:

XML

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Telerik.Licensing.Runtime" publicKeyToken="98bb5b04e55c09ef" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-1.9.2.0" newVersion="1.9.2.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

Set oldVersion and newVersion to the Telerik.Licensing.Runtime version installed in your application. This binding redirect is only required for .NET Framework projects. For more information, see the .NET Framework binding redirect guidance.

See Also

• Set Up Your License Key
• How the Runtime Locates Assemblies