如题，按照老师的课程我做了一个一样的BottomTabView，然后我想在BottomTabView里的页面继续用Obx，但是就报错
════════ Exception caught by widgets library ═══════════════════════════════════
The following message was thrown building Obx(has builder, dirty, state: ObxState#56661):
[Get] the improper use of a GetX has been detected.
You should only use GetX or Obx for the specific widget that will be updated.
If you are seeing this error, you probably did not insert any observable variables into GetX/Obx
or insert them outside the scope that GetX considers suitable for an update
(example: GetX => HeavyWidget => variableObservable).
If you need to update a parent widget and a child widget, wrap each one in an Obx/GetX.

The relevant error-causing widget was:
Obx Obx:file:///Users/shige/Desktop/AppProjects/parrot/lib/pages/card/views/card_page.dart:19:13

CardPage代码如下

class CardPage extends GetView<CardViewModel> {
  const CardPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: const Text('打卡'),
        ),
        body: Column(
          children: [
            const Center(child: UserInfoWidget()),
            Obx(() => CascaderWidget(
                label: '班次',
                options: controller.shiftOptions,
                onChange: (value) {}))
          ],
        ));
  }
}

这意味着pageview下的子页面不能再用Obx监听了吗？