缺少权限或权限不足。在新的FirestoreError

Question

在使用firebase执行logout（）之后在Ionic 3上工作时，重定向到登录页面后出现以下错误：

Error: Missing or insufficient permissions.
    at new FirestoreError (error.js:140)
    at JsonProtoSerializer.fromRpcStatus (serializer.js:93)
    at JsonProtoSerializer.fromWatchChange (serializer.js:573)
    at PersistentListenStream.onMessage (persistent_stream.js:393)
    at persistent_stream.js:337
    at PersistentListenStream.<anonymous> (persistent_stream.js:313)
    at step (tslib.es6.js:97)
    at Object.next (tslib.es6.js:78)
    at tslib.es6.js:71
    at new t (polyfills.js:3)

auth-provider的注销功能执行以下代码：

 logout(): Promise<any> {
    // TODO: Read from storage if user loggedIn via FB before the call.
    return new Promise((resolve, reject) => {
      this.angularFireAuth.auth.signOut().then(() => {
        resolve();
      }).catch(() => {
        reject();
      });
    });
  }

和组件中的调用者函数执行以下代码：

private logout(): void {
    this.auth.logout().then(() => {
      this.menuCtrl.close();
      this.nav.setRoot('page-login');
    });
  }

显示登录页面后，立即出现错误。