ERROR TypeError: You provided 'undefined' where a stream was expected. You can provide an Observable, Promise, Array, or Iterable.

I tried with below code, pass compiling, but when going into the page with the date picker, it throws error like below. Also the spinner in date picker doesn’t work.

<mat-form-field>
  <input matInput [ngxMatDatetimePicker]="picker">
  <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
  <ngx-mat-datetime-picker #picker></ngx-mat-datetime-picker>
</mat-form-field>

Below is the error stack.

core.js:4196 ERROR TypeError: You provided ‘undefined’ where a stream was expected. You can provide an Observable, Promise, Array, or Iterable. at subscribeTo (subscribeTo.js:27) at subscribeToResult (subscribeToResult.js:11) at MergeMapSubscriber._innerSub (mergeMap.js:59) at MergeMapSubscriber._tryNext (mergeMap.js:53) at MergeMapSubscriber._next (mergeMap.js:36) at MergeMapSubscriber.next (Subscriber.js:49) at Observable._subscribe (subscribeToArray.js:3) at Observable._trySubscribe (Observable.js:42) at Observable.subscribe (Observable.js:28) at MergeMapOperator.call (mergeMap.js:21)

I tried to reproduce this bug on Stackblitz (https://stackblitz.com/edit/angular-ivy-hfg2a4), but it throws error: Error in ~/src/main.ts ngcc failed to run on @angular-material-components/moment-adapter@4.0.1, @angular-material-components/datetime-picker@4.0.1.

version: Angular 10 “@angular-material-components/datetime-picker”: “^4.0.1”, “@angular-material-components/moment-adapter”: “^4.0.1”,