[Solved] Kendo UI for JQuery License not Verify

[Tayyab]

Previously, we were using Kendo version 2021.3, and I have now upgraded it to 2025.4.1217 across three variants using the Visual Studio Extension tool:

1. Kendo UI for ASP.NET MVC
2. Kendo UI for jQuery
3. KendoReact

I have also downloaded the license key and placed it as telerik-license.txt in the project root folder. However, when I run the project, I see a banner stating: “Could not verify the license for Kendo UI for jQuery.” I am not sure what is causing this issue. I have followed all the steps as per the Telerik guidelines.

Note: I have also removed all old version references.

Please guide me

Thanks

[Anton Mironov]

Hello Tayyab,

Thank you for the details provided.

For Kendo UI for jQuery version 2025.1.211 and above, the license activation now requires a JavaScript file named kendo-ui-license.js, not telerik-license.txt. The .txt license file is no longer valid for jQuery projects starting with this version.

Here’s what you need to do for each product:

• Kendo UI for jQuery:
  Download the kendo-ui-license.js file from your Telerik account, include it in your project, and reference it in your HTML after the Kendo UI scripts:

  <script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
  <script src="https://kendo.cdn.telerik.com/2025.4.1217/js/kendo.all.min.js"></script>
  <script src="path/to/kendo-ui-license.js"></script>
  

  More details:
  https://www.telerik.com/aspnet-mvc/documentation/installation/activating-your-license/setting-up-your-license

• Kendo UI for MVC:
  The licensing process for MVC is different and still uses the telerik.licx or telerik-license.licx file. Placing telerik-license.txt or kendo-ui-license.js will not work for MVC.

  • https://docs.telerik.com/aspnet-mvc/installation/license-activation

• KendoReact:
  KendoReact uses its own license key and activation process, which is separate from the jQuery and MVC products.

  • https://www.telerik.com/kendo-react-ui/components/my-license/

If you continue to see the license warning for jQuery, please verify:

• The filename is exactly kendo-ui-license.js.
• The file is loaded after all Kendo UI for jQuery scripts.
• There are no old Kendo UI for jQuery files left in your project.
• The browser’s network tab confirms the license file is loaded.

If the issue persists, please share more about your project structure or how you reference the scripts so I can help further.

 

Kind Regards,
Anton Mironov
Progress Telerik