Uncaught (in promise): false

报错：EXCEPTION: Uncaught (in promise): false
      ORIGINAL STACKTRACE:
      Error: Uncaught (in promise): false
 login() {

        let loader = this.httpService.loading();
        //发布登录成功消息，刷新首页信息
        this.viewCtrl.onDidDismiss(() => {
            this.events.publish("LOGIN_SUCCESS");
        });
        loader.present()
        loader.dismiss();
        return this.viewCtrl.dismiss();
    }
编辑后：
    login() {

        let loader = this.httpService.loading();
        //发布登录成功消息，刷新首页信息
        this.viewCtrl.onDidDismiss(() => {
            this.events.publish("LOGIN_SUCCESS");
        });
        loader.present()
        .then(() => {
            // 在 loading 控件显示后立即关闭
            return loader.dismiss();
        })
        .then(() => {
            // 在 loader 关闭后关闭视图控制器
            return this.viewCtrl.dismiss();
        })
        .catch((error) => {
            // 捕获任何错误，并在控制台中记录
            console.log('An error occurred:', error);
        });
    
    }