Vscode-ng-language-service: Referensi template ke ngModel menghasilkan kesalahan.

Diberikan template

<label for="name">Name</label>
<input type="text" class="form-control" id="name"
       required
       [(ngModel)]="model.name" name="name"
       #name="ngModel" >
<div [hidden]="name.valid || name.pristine"
     class="alert alert-danger">Name is required</div>

Layanan bahasa ng akan menggambar coretan merah di bawah name.valid dan name.pristine dengan kesalahan

[Angular] Identifier 'valid' is not defined. 'NgModel' does not contain such a member