title: @angular-material-components/datetime-picker - '@angular/material/datepicker"' has no exported member 'DateRange'
body: <p>I'm on angular material 9.2.0. I installed  <code>@angular-material-components/datetime-picker</code> for dateTimePicker .</p>
  <p>I get this errors when I run <code>ng build --prod</code>.</p>
  <p><a href="https://i.stack.imgur.com/PC9VS.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/PC9VS.png" alt="enter image description here" /></a></p>