NullInjectorError: StaticInjectorError (AppModule)

Я хочу написать о datepicker для Angular Material, но у меня есть такая ошибка:

main.ts: 12 NullInjectorError: StaticInjectorError (AppModule) [A11yModule - ›HighContrastModeDetector]: StaticInjectorError (Platform: core) [A11yModule -› HighContrastModeDetector]: NullInjectorError: Нет поставщика для HighContrastModeDetectorMode!

.html

    <div class="form-group col-md-6">
      <label for="date">Date</label>
      <mat-form-field appearance="fill">
        <mat-label>Choose a date</mat-label>
        <input matInput [matDatepicker]="picker">
        <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
        <mat-datepicker #picker></mat-datepicker>
      </mat-form-field>
    </div>

app.modules.ts

import { MatDatepickerModule } from '@angular/material/datepicker';
import { MatInputModule} from '@angular/material/input';
import { MatNativeDateModule } from '@angular/material/core';
@NgModule({
  imports: [
    MatDatepickerModule,
    MatInputModule,
    MatNativeDateModule
  ],
})