Angular 2 warning Form submission canceled because the form is not connected - angular2-routing

Question

I have this error when i submit form in angular 2
Form submission canceled because the form is not connected
None other posts help me to resolve my question. I have two pages one have a form. When submit this form and reload a page use this code
this.router.navigate(['/tipoquestionariolist']);
The ngOnInit work get the data but the screen not apears data and on console say that message.
Html form show bellow
<form ngForm #formulario="ngForm" (ngSubmit)="salvar()" >
<md-input-container class="col-sm-12" >
<input mdInput placeholder="Denominação" [(ngModel)]="tipoQuestionario.denominacao" required name="denominacao" type="text"#denominacao="ngModel">
</md-input-container>
<label class="col-sm-12" >Extinto</label>
<md-radio-group class="col-sm-12" [(ngModel)]="tipoQuestionario.extinto" name="extinto" >
<md-radio-button [value]="true" >
Sim
</md-radio-button>
<md-radio-button [value]="false" >
Não
</md-radio-button>
</md-radio-group>
<br>
<button type="submit" md-raised-button title="Editar" color="primary" [disabled]="!formulario.form.valid">
<md-icon>save</md-icon> Salvar
</button>
<button md-raised-button (click)="novo()" color="primary">
<md-icon>refresh</md-icon> Limpar
</button>
<div>
<br>
<button md-raised-button (click)="voltar()" color="primary">
<md-icon>arrow_back</md-icon> Voltar
</button>
</div>
</form>
and the table
<table class="table table-bordered table-striped table-hover">
<thead>
<tr>
<th class="col-sm-1">#</th>
<th class="col-sm-9" >Denominação</th>
<th class="col-sm-2 text-center" >Ação</th>
</tr>
</thead>
<tbody *ngIf="(lista | async)?.length > 0">
<tr *ngFor="let row of pagerComponent.pagedItems">
<td>{{row.id}}</td>
<td>{{row.denominacao}}</td>
<td class="text-center">
<button md-raised-button class="button-small" title="Editar" color="primary" (click)="editar(row.id)">
<md-icon>create</md-icon>
</button>
<button md-raised-button class="button-small" color="warn" title="Excluir" (click)="itemSelecionado = row" data-toggle="modal" data-target="#modalExcluir" >
<md-icon>delete</md-icon>
</button>
</td>
</tr>
</tbody>
<tbody *ngIf="(lista | async)?.length == 0">
<tr>
<td colspan="4" style="text-align: center"><p>Nenhum registro encontrado</p></td>
</tr>
</tbody>
</table>