After upgrade to Angular 6/Material 6 why am I facing 'mat-input-container is not a known element'?
This CSS class has been removed beginning version
6.0.0-beta.5 (2018-03-23)
mat-input-container has been deprecated, instead use mat-form-field
For details of breaking changes in 6.0.0-beta.5:
https://github.com/angular/material2/blob/master/CHANGELOG.md#600-beta5-2018-03-23
For details of breaking changes in general, refer:
https://github.com/angular/material2/blob/master/CHANGELOG.md
As per https://material.angular.io/components/form-field/overview we are now supposed to use mat-form-field
<mat-form-field>
<mat-select placeholder="Select">
<mat-option value="option">Option</mat-option>
</mat-select>
</mat-form-field>