Password and Confirm on Ionic

ionic-v1
1

I am trying to create the tool to confirm the password in the ionic but it is not working. The same code worked on another project.

<ion-item>
				<ion-label stacked>Password</ion-label>
				<ion-input type="password" class="form-control" name="password" [(ngModel)]="usuario.password" validateEqual="confirmPassword" reverse="true" #password="ngModel" required>
				</ion-input>
			</ion-item>
			<p ion-text [hidden]="password.valid || submitted == false" color="danger" padding-left>
				Password required
			</p>

			<ion-item>
				<ion-label stacked>Confirm password</ion-label>
				<ion-input type="password" class="form-control" name="confirmPassword" [(ngModel)]="usuario.confirmPassword" validateEqual="password" reverse="false" #confirmPassword="ngModel" required>
				</ion-input>
			</ion-item>
			<p ion-text [hidden]="confirmPassword.valid || (confirmPassword.pristine && submitted == false)" color="danger" padding-left>
				Incompatible password
			</p>

Could anyone try to help me with this?