After Android saves the data, an error is reported when running again, and there will be a flash back when I debug the breakpoint

[Aaron009]

The error screenshot is as follows：

[greenrobot-team]

Thanks! Can you please share additional details (code snippets, what versions you are using, instructions) that allow us to reproduce this problem?

[Aaron009]

bug example:
https://github.com/Aaron009/bug_objectbox

iOS works fine,

When Android is opened for the second time, an error will be reported.

[greenrobot-team]

If I read the code correctly, it may call openStore() multiple times. Try to call initDataBase() from the main method of your app instead. Like in our examples:

objectbox-dart/objectbox/example/flutter/objectbox_demo_relations/lib/main.dart

Lines 12 to 20 in 6c2176d

	Future<void> main() async {
	// This is required so ObjectBox can get the application directory
	// to store the database in.
	WidgetsFlutterBinding.ensureInitialized();
	objectbox = await ObjectBox.create();
	runApp(const MyApp());
	}

[Aaron009]

If I read the code correctly, it may call openStore() multiple times. Try to call initDataBase() from the main method of your app instead. Like in our examples:

objectbox-dart/objectbox/example/flutter/objectbox_demo_relations/lib/main.dart

Lines 12 to 20 in 6c2176d

	Future<void> main() async {
	// This is required so ObjectBox can get the application directory
	// to store the database in.
	WidgetsFlutterBinding.ensureInitialized();
	objectbox = await ObjectBox.create();
	runApp(const MyApp());
	}

I'm pretty sure it's only called once.
I've hit print log and also found that it's only called once.

I/flutter (18852): initDataBase initDataBase!
I/flutter (18852): getBox getBox!
E/flutter (18852): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: RangeError (byteOffset): Invalid value: Valid value range is empty: 0
E/flutter (18852): #0      ObjectCollectorError.throwIfError (package:objectbox/src/native/bindings/data_visitor.dart:58:24)
E/flutter (18852): #1      Query.find (package:objectbox/src/native/query/query.dart:827:18)
E/flutter (18852): #2      DataBase.getLanguageData (package:bug/main.dart:196:25)
E/flutter (18852): #3      _MyHomePageState.initDataBase (package:bug/main.dart:79:35)
E/flutter (18852): <asynchronous suspension>

[greenrobot-team]

E/flutter (18852): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: RangeError (byteOffset): Invalid value: Valid value range is empty: 0

This is #460, a fix is available with the latest release: https://github.com/objectbox/objectbox-dart/releases/tag/v1.6.2

[github-actions]

Without additional information, we are unfortunately not sure how to resolve this issue. Therefore this issue has been automatically closed. Feel free to comment with additional details and we can re-open this issue.