TypeError: Cannot read properties of undefined (reading 'unsubscribe') at CalendarComponent.ngOnDestroy

[Mike]

We started getting this error in our Angular app.  How can we fix this?  Have tried several different versions of kendo-angular-dateinputs - 4.4.1, 5.x, 6.0

core.js:6210 ERROR Error: Uncaught (in promise): TypeError: Cannot read properties of undefined (reading 'unsubscribe')
TypeError: Cannot read properties of undefined (reading 'unsubscribe')
    at CalendarComponent.ngOnDestroy (index.js:3841)
    at executeOnDestroys (core.js:7415)
    at cleanUpView (core.js:7318)
    at destroyViewTree (core.js:7151)
    at destroyLView (core.js:7296)
    at RootViewRef.destroy (core.js:22642)
    at ComponentRef$1.destroy (core.js:25182)
    at RouterOutlet.deactivate (router.js:5307)
    at ActivateRoutes.deactivateRouteAndOutlet (router.js:2072)
    at ActivateRoutes.deactivateRouteAndItsChildren (router.js:2050)
    at resolvePromise (zone-evergreen.js:798)
    at resolvePromise (zone-evergreen.js:750)
    at zone-evergreen.js:860
    at ZoneDelegate.invokeTask (zone-evergreen.js:399)
    at Object.onInvokeTask (core.js:28578)
    at ZoneDelegate.invokeTask (zone-evergreen.js:398)
    at Zone.runTask (zone-evergreen.js:167)
    at drainMicroTaskQueue (zone-evergreen.js:569)

[Yanmario]

Hi Mike,

I've noticed that a private support ticket was submitted on this matter. An answer will be provided there:

https://www.telerik.com/account/support-tickets/view-ticket/1551153

Regards,
Yanmario
Progress Telerik