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Unhandled Exception: HiveError: This should not happen. Please open an issue on GitHub. #370

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nivla360 opened this issue Jul 11, 2020 · 2 comments
Closed

Unhandled Exception: HiveError: This should not happen. Please open an issue on GitHub. #370

nivla360 opened this issue Jul 11, 2020 · 2 comments
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@simc
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needs-author-feedback Needs feedback from author problem An unconfirmed bug.

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@nivla360
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nivla360 commented Jul 11, 2020 •
edited by themisir
Loading

Steps to Reproduce
I'm using the provider package and this usually happens when I do the one of the following or together I don't really know the sequence:

  1. When I call box.close() on dispose of my page
  2. When a box is opened and I do a hot reload
  3. Sometimes when I try to close a box it throws another exception: box is not opened even though I check if the box is opened before I close

Code sample

class ChatListBloc extends ChangeNotifier {
  bool _isLoading = true;
  DatabaseReference _chatListRef = FirebaseDatabase.instance
      .reference()
      .child('chat_list');

  bool get isLoading => _isLoading;
  set isLoading(bool isLd){
    _isLoading = isLd;
    notifyListeners();
  }

  List get chatList => Hive.box('chat_list').values.toList(growable: false).sortedByDescending((element) => element[time_stamp]);    
void getChatList() async {
    if (!Hive.isBoxOpen('chat_list'))
      await Hive.openBox('chat_list');
    _loadOnlineData();
    await Future.delayed(Duration(milliseconds: 500));
    if(Hive.box('chat_list').isNotEmpty)
      {
        isLoading = false;
      }
  }

  disposeBox() async {
    if (Hive.isBoxOpen('chat_list'))
       await Hive.box('chat_list').close();
  }

  _loadOnlineData() async {
    if(await utilClass.isConnected()){
      if (!Hive.isBoxOpen('chat_list'))
        await Hive.openBox('chat_list');
      _chatListRef = FirebaseDatabase.instance
          .reference()
          .child('chat_list')
          .child(uId]).onValue.listen((event) {
        if (event.snapshot.value != null) {
          event.snapshot.value.forEach((key1, value) async {
            value[key] = key1;
            await Hive.box('chat_list').put(key1, value);
          });
        }
        isLoading = false;
      });
    }
  }
}

Provide a few simple lines of code to show your problem.

E/flutter (25930): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: HiveError: Box not found. Did you forget to call Hive.openBox()?
E/flutter (25930): #0      HiveImpl._getBoxInternal (package:hive/src/hive_impl.dart:146:7)
E/flutter (25930): #1      HiveImpl.box (package:hive/src/hive_impl.dart:157:33)
E/flutter (25930): #2      ChatListBloc.getChatList (package:.../bloc/chat_list_bloc.dart:32:13)
E/flutter (25930): <asynchronous suspension>
E/flutter (25930): #3      _MessagesState._body (package:.../ui/messages.dart:124:19)
E/flutter (25930): #4      _MessagesState.build (package:.../ui/messages.dart:51:13)
E/flutter (25930): #5      StatefulElement.build (package:flutter/src/widgets/framework.dart:4628:28)
E/flutter (25930): #6      ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4511:15)
E/flutter (25930): #7      StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4684:11)
E/flutter (25930): #8      Element.rebuild (package:flutter/src/widgets/framework.dart:4227:5)
E/flutter (25930): #9      ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4490:5)
E/flutter (25930): #10     StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4675:11)
E/flutter (25930): #11     ComponentElement.mount (package:flutter/src/widgets/framework.dart:4485:5)
E/flutter (25930): #12     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3455:14)
E/flutter (25930): #13     Element.updateChild (package:flutter/src/widgets/framework.dart:3223:18)
E/flutter (25930): #14     SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5839:14)
E/flutter (25930): #15     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3455:14)
E/flutter (25930): #16     Element.updateChild (package:flutter/src/widgets/framework.dart:3223:18)
E/flutter (25930): #17     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4536:16)
E/flutter (25930): #18     Element.rebuild (package:flutter/src/widgets/framework.dart:4227:5)
E/flutter (25930): #19     ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4490:5)
E/flutter (25930): #20     ComponentElement.mount (package:flutter/src/widgets/framework.dart:4485:5)
E/flutter (25930): #21     Element.inflateWidget (package:flutter/src/widgets/framework.dart:3455:14)
E/flutter (25930): #22     Element.updateChild (package:flutter/src/widgets/framework.dart:3220:20)
E/flutter (25930): #23     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4536:16)
E/flutter (25930): #24     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4684:11)
E/flutter (25930): #25     Element.rebuild (package:flutter/src/widgets/framework.dart:4227:5)
E/flutter (25930): #26     StatefulElement.update (package:flutter/src/widgets/framework.dart:4716:5)
E/flutter (25930): #27     Element.updateChild (package:flutter/src/widgets/framework.dart:3210:15)
E/flutter (25930): #28     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5846:14)
E/flutter (25930): #29     Element.updateChild (package:flutter/src/widgets/framework.dart:3210:15)
E/flutter (25930): #30     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4536:16)
E/flutter (25930): #31     Element.rebuild (package:flutter/src/widgets/framework.dart:4227:5)
E/flutter (25930): #32     StatelessElement.update (package:flutter/src/widgets/framework.dart:4592:5)
E/flutter (25930): #33     Element.updateChild (package:flutter/src/widgets/framework.dart:3210:15)
E/flutter (25930): #34     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5846:14)
E/flutter (25930): #35     Element.updateChild (package:flutter/src/widgets/framework.dart:3210:15)
E/flutter (25930): #36     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4536:16)
E/flutter (25930): #37     Element.rebuild (package:flutter/src/widgets/framework.dart:4227:5)
E/flutter (25930): #38     StatelessElement.update (package:flutter/src/widgets/framework.dart:4592:5)
E/flutter (25930): #39     Element.updateChild (package:flutter/src/widgets/framework.dart:3210:15)
E/flutter (25930): #40     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4536:16)
E/flutter (25930): #41     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4684:11)
E/flutter (25930): #42     Element.rebuild (package:flutter/src/widgets/framework.dart:4227:5)
E/flutter (25930): #43     StatefulElement.update (package:flutter/src/widgets/framework.dart:4716:5)
E/flutter (25930): #44     Element.updateChild (package:flutter/src/widgets/framework.dart:3210:15)
E/flutter (25930): #45     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4536:16)
E/flutter (25930): #46     StatefulElement.performRebuild

Version

  • Platform: Android, haven't test it on other platforms
  • Flutter version: 1.19.0-4.1.pre • channel beta •
  • Hive version: 1.4.1+1
@nivla360 nivla360 added the problem An unconfirmed bug. label Jul 11, 2020
@themisir
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themisir commented Jul 13, 2020 •
edited
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I am usually doing like this:

class SomeBloc {
  Box _box;

  Future<void> _openBox() async {
    if (_box != null) return;
    _box = await Hive.openBox('boxName');
  }

  Future<void> initialize() async {
    final List
  }

  void dispose() {
    _box?.close();
    _box = null;
  }

  Future<void> _loadOnlineData() async {
    if (await utilClass.isConnected()){
      await _openBox();
      _chatListRef = FirebaseDatabase.instance
          .reference()
          .child('chat_list')
          .child(uId]).onValue.listen((event) async {
        if (event.snapshot.value != null) {
          // I prefer native `for` loop here instead of .forEach method, because .forEach method is not awaiting async calls
          event.snapshot.value.forEach((key1, value) async {
            value[key] = key1;
            _box.put(key1, value);
          });
        }
        isLoading = false;
      });
    }
  }
}

@themisir themisir added the needs-author-feedback Needs feedback from author label Jul 23, 2020
@themisir
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Duplicate of #263

@themisir themisir marked this as a duplicate of #263 Aug 22, 2020
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