1. 报错信息：

[@ionic/vue Warning]: The view you are trying to render for path /tabs/tab1 does not have the required <ion-page> component. Transitions and lifecycle methods may not work as expected.

See https://ionicframework.com/docs/vue/navigation#ionpage for more information.
IonRouterOutlet.ts:29 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'classList')
    at isViewVisible (IonRouterOutlet.ts:29:17)
    at handlePageTransition (IonRouterOutlet.ts:327:9)
    at setupViewItem (IonRouterOutlet.ts:488:9)
    at watch.deep (IonRouterOutlet.ts:112:13)
    at callWithErrorHandling (runtime-core.esm-bundler.js:193:18)
    at callWithAsyncErrorHandling (runtime-core.esm-bundler.js:201:17)
    at job (runtime-core.esm-bundler.js:1943:9)
    at callWithErrorHandling (runtime-core.esm-bundler.js:193:32)
    at flushJobs (runtime-core.esm-bundler.js:401:9)

2. List item
   在响应的页面添加IonPage组件即可