lateinit property stripeSdk has not been initialized (Solved)

[yanmastra]

Failed to handle method call
kotlin.UninitializedPropertyAccessException: lateinit property stripeSdk has not been initialized

Anyone can help me please, I have this error while use Stripe, I use Java for android platform,
I have followed all the guidelines given

[remonh87]

Normally this happens when the Flutter bindings are not initialised. To you call FlutterWidgetsBinding.ensureinitialized in main?

[yanmastra]

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  SharedPreferences.setMockInitialValues({});
  try {
    Environment.packageInfo = await PackageInfo.fromPlatform();
  } catch (e) {
    Environment.packageInfo = null;
  }
  Environment.env = env;
  Stripe.publishableKey = Environment.stripePublishKey;
  Stripe.merchantIdentifier = 'My App';
  runApp(MyApp());
}

this is my code in main.dart , is there any mistake in my code ?