Migration from .NET Framework 4.7.2 to .NET 6 Kendo UI Multiselect not working JS error

[Moazzam]

After converting my project from .NET 4.7.2 to .NET 6.0 I am facing below JS error for Kendo UI multiselect

readyException.js:9 Uncaught TypeError: Cannot read properties of undefined (reading 'off')
    at init._editable (kendo.multiselect.js:537:40)
    at init.readonly (kendo.list.js:201:18)
    at new init (kendo.ts:796:30)
    at HTMLSelectElement.eval (kendo.core.js:3469:32)
    at Function.each (core.js:260:19)
    at jQuery.fn.init.each (core.js:82:17)
    at $.fn.<computed> [as kendoMultiSelect] (kendo.core.js:3468:26)
    at HTMLDocument.<anonymous> (List:668:63)
    at mightThrow (deferred.js:124:29)
    at process (deferred.js:192:12)

[Aleksandar]

Hello Moazzam,

Based on the provided details I cannot be sure why this error is thrown. I also couldn't find any previous reports on such an error. I will therefore ask you to provide some additional details, so I can investigate further:

• Version of Telerik UI for ASP.NET Core used
• The definition of the MultiSelect and if there are any steps I should be taking to reproduce the error
• Ideally, providing a runnable sample (sample application or a REPL example) would be helpful in investigating further.

Once the above details are available I would be able to provide further guidance.

Regards,
Aleksandar
Progress Telerik