Troubleshooting an Invalid Kendo UI License

Environment

Product	Progress® Kendo UI® for jQuery
Kendo Version	2022.2.510 (R2 2022) and later

Description

An invalid or missing Kendo UI for jQuery license triggers the following behavior on pages that contain any incorrectly licensed Kendo UI components:

• A watermark will appear over select components.

  • Example of a watermark in the Light Theme:
    
  • Example of a watermark in the Dark Theme:

• A banner will appear on pages that use unlicensed Kendo UI for jQuery components.

  

  • Clicking the ? button of the banner will take you to the Kendo UI for jQuery licensing documentation.
  • Clicking the X button of the banner will close the banner until the page is reloaded or a license is activated.

• A warning message similar to the one below will be logged in the browser's console.

Cause

An invalid license can be caused by any of the following:

• Using an invalid or expired commercial license.
• Using an expired trial license.
• Not adding your Kendo UI for jQuery license file into the application.

Solution

• Verify that you use Kendo UI for jQuery versions that have been released during the validity period of your license.
• Generate and add your personal license file to the application.
• Make sure that the script license is present in your project.
• Make sure that the references to the license file are correct.

If you still experience issues related to the license key, contact us through the available support channels.

See Also

• Generating and Using a License File
• License File Frequently Asked Questions