Unhandled Exception: Null check operator used on a null value

[jeromekai]

sp 使用的是最新版本

运行时异常 void main() async { await SpUtil.getInstance(); runApp(DemoApp()); .......... }

异常出错位置代码 Future _init() async { _prefs = await SharedPreferences .getInstance();
}

await _lock. synchronized(() async { ................................ 有什么解决办法

[Sky24n]

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await SpUtil.getInstance();
  runApp(const MyApp());
}

[wlingf]