Hi Aditya,

Thank you for sharing such detailed information regarding the issue you are currently facing.

Based on the error message provided in the screenshot, it appears that the error is likely caused by the absence of the "telerikInterop.js" file or its incorrect registration as a script, rather than being a bug.

To resolve this, please follow the steps below:

1. Open the "wwwroot" directory and ensure that the "telerikInterop.js" file is present in that location.
2. Open the "index.html" file located in the "wwwroot" directory and confirm that the "telerikInterop.js" file is registered using the following line of code:

   <script src="telerikInterop.js"></script>

   Please note that if you are using a Server-side project, you should move the above script into the "_Host.cshtml" file instead of the "index.html".

If you have followed the above steps and the error still persists, please don't hesitate to reach out to me for further assistance. At this moment, I'm updating the status and will remain available to help you.

Regards,
Hristian Stefanov
Progress Telerik