当连续2次调用此函数时，iOS应用程序崩溃(Firebase Storage，Flutter)

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  @override
  void dispose() {
    // 释放资源
    super.dispose();
  }

  void fetchData() async {
    // 调用Firebase Storage
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Firebase Storage Example'),
      ),
      body: Center(
        child: ElevatedButton(
          onPressed: fetchData,
          child: Text('Fetch Data'),
        ),
      ),
    );
  }
}

Future<void> fetchData() async {
  try {
    // 等待前一个请求完成
    await FirebaseStorage.instance.ref().child('path').putFile(file);
  } catch (e) {
    print(e);
  }
}

dependencies:
  firebase_storage: ^10.0.0