ionic3 - Didn't set nav root: invalid views to insert - ionic-framework

Question

When I click a button this warning coming out which I running it in my web browser.(ionic serve -l)
I have <ion-nav [root]="rootPage" #content swipeBackEnabled="false"></ion-nav> in my app.html file, is it problem?
UPDATE:
button image (button in slide menu - feedback button)
app.html
<ion-list>
<ion-list-header>导航栏</ion-list-header>
<button menuClose ion-item *ngFor="let p of loggedInPages" (click)="openPage(p)">
<ion-icon item-start [name]="p.icon" [color]="isActive(p)"></ion-icon>
{{p.title}}
</button>
</ion-list>
app.components.ts
appPages: PageInterface[] = [
{ title: '新闻', name: 'TabsPage', component: TabsPage, index: 0, icon: 'ios-globe-outline' },
{ title: 'SOS', name: 'TabsPage', component: TabsPage, index: 1, icon: 'call' },
{ title: '服务', name: 'TabsPage', component: TabsPage, index: 2, icon: 'people' },
{ title: '反馈', name: 'FeedbackPage', component: FeedbackPage, icon: 'information-circle' },
// { title: '机场志愿者入口', name: 'TabsPage', component: TabsPage, index: 0, icon: 'minan-sos' }
];
loggedInPages: PageInterface[] = [
{ title: '新闻', name: 'TabsPage', component: TabsPage, index: 0, icon: 'ios-globe-outline' },
{ title: 'SOS', name: 'TabsPage', component: TabsPage, index: 1, icon: 'call' },
{ title: '服务', name: 'TabsPage', component: TabsPage, index: 2, icon: 'people' },
{ title: '反馈', name: 'FeedbackPage', component: FeedbackPage, icon: 'information-circle' },
{ title: '注销', name: 'TabsPage', component: TabsPage, icon: 'log-out', logsOut: true }
];
openPage(page: PageInterface) {
let params = {};
if (page.index) {
params = { tabIndex: page.index };
}
if (this.nav.getActiveChildNavs().length && page.index != undefined) {
this.nav.getActiveChildNavs()[0].select(page.index);
} else {
// Set the root of the nav with params if it's a tab index
this.nav.setRoot(this.nav.setRoot(page.component, params), params).catch((err: any) => {
console.log(`Didn't set nav root: ${err}`);
});
}
if (page.logsOut === true) {
// Give the menu time to close before changing to logged out
this.userData.logout();
}
}