Handling License Key File Name and Environment Variable Name Changes in the 2025 Q1 Release

Updated on Jun 5, 2026

Environment

Version	Product	Author
Q1 2025	Telerik Document Processing	Desislava Yordanova

Description

After downloading the License Key file by using the VS2022 extensions menu:

when building a simple console app with the Telerik Document Processing libraries, you get the following error:

Solution

An old KENDO_UI_LICENSE environment variable may cause this error. Delete it and run the refreshenv command. If the rebuild produces the same error again, follow these steps:

1. Go to telerik.com and generate a new License Key.

2. Compare the license key with the one downloaded from the extensions. If it differs from the one VS2022 downloaded, replace the original telerik-license.txt file with the newly downloaded one.

3. Restart VS2022 to ensure it loads fresh environment variables and compile the project. The build succeeds:

   

See Also

• Unable to find package Telerik.Licensing