[firebase_storage] i can't upload file because => No App Check token for request

[Joseph-Nathan]

No App Check token for request.
I got this massage when i try to upload pdf file ,

rules_version = '2';
service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
      allow read, write;
    }
  }
}

when i used
firebase_app_check: ^0.0.1
as

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();

  await FirebaseAppCheck.instance
      .activate();

  runApp(MyApp());
}

i got
Error getting App Check token; using placeholder token instead. Error: com.google.firebase.FirebaseException: 7:

note: in two cause file will upload but it was empty => 0kb