I get a weird error when trying to initialize Hive

Question

Error: Unhandled Exception: HiveError: You need to initialize Hive or provide a path to store the box.

Essentially I have these in my dependencies so everything should be good.

  hive: ^1.4.4+1
  hive_flutter: ^0.3.1
  path_provider: ^1.6.27

I also have import 'package:hive/hive.dart'; and import 'package:path_provider/path_provider.dart'; in the file

So I just have

void doSomething() async {
    final documentDirectory = await getApplicationDocumentsDirectory();
    Hive.init(documentDirectory.path);
  }

called.

I do not understand. I think I've done everything correct. Let me know if you need something else.

Solution 1

Hive needs to be initialized when it runs on Android or iOS, therefore you can use a function like this:

Future<Box> openHiveBox(String boxName) async {
    if (!kIsWeb && !Hive.isBoxOpen(boxName)) 
      Hive.init((await getApplicationDocumentsDirectory()).path);
    
    return await Hive.openBox(boxName);
}

You'll need to import path_provider in order to access getApplicationDocumentsDirectory()

Solution 2

Try the following code on the main function of your flutter application:

import 'package:path_provider/path_provider.dart';
import 'package:hive/hive.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  final appDocumentDirectory = await getApplicationDocumentsDirectory();
  Hive.init(appDocumentDirectory.path);
}