CODEWITHSUNDEEP
flutterdart
seung min
seung min

Reputation: 125

ERROR:flutter/lib/ui/ui_dart_state.cc(166) Unhandled Exception: type '_CompactLinkedHashSet<Void>' is not a subtype of type 'FutureOr<Map<>>'

I got this error when I tried to parse json object from server. I tried to find solutions many times but I couldn't get any. IDE says this error occur in this code but not telling specific part. The code below is my model's code which request api response to service module.

Future getLolBySummonerName(Map<String, String> queryBody) async {
    try {
      _lolResponse = await _lolService.getLolBySummonerName(queryBody);
      notifyListeners();
    } on UnauthorizedException {
      return Future.error(Navigate('/loginMethod'));
    } on NotFoundException {
      return Future.error(Message('없는 소환사명입니다.'));
    }
  }

And this is service module part.

Future<LolResponse> getLolBySummonerName(Map<String, String> queryBody) async {
    var uri = Uri.https('servier-url', '/endpoint', queryBody);
    final response = await http.get(uri);

    if (response.statusCode == 200) {
      return LolResponse.fromJson(jsonDecode(response.body));
    }

    NetworkErrorHandler.throwProperException(response);
    return null;
  }

Finally those classes are the responses from server.

class LolResponse {
  final String evaluation;
  final FlexRank flexRank;
  final String icon;
  final int level;
  final List<Most> mosts;
  final SoloRank soloRank;
  final String summonerName;

  LolResponse(
      {this.evaluation,
      this.flexRank,
      this.icon,
      this.level,
      this.mosts,
      this.soloRank,
      this.summonerName});

  factory LolResponse.fromJson(Map<String, dynamic> json) {
    return LolResponse(
        evaluation: json['evaluation'],
        flexRank: FlexRank.fromJson(json['flexRank']),
        icon: json['icon'],
        level: json['level'],
        mosts: json['mosts'].map((e) => Most.fromJson(e)).toList(),
        soloRank: SoloRank.fromJson(json['soloRank']),
        summonerName: json['summonerName']);
  }
}

class FlexRank {
  final String image;
  final String name;

  FlexRank({this.image, this.name});

  factory FlexRank.fromJson(Map<String, dynamic> json) {
    if (json == null) return FlexRank();
    return FlexRank(image: json['image'], name: json['name']);
  }
}

class Most {
  final String evaluation;
  final int gameCount;
  final String image;
  final String name;
  final double winRate;

  Most({this.evaluation, this.gameCount, this.image, this.name, this.winRate});

  factory Most.fromJson(Map<String, dynamic> json) {
    if (json == null) return Most();
    return Most(
        evaluation: json['evaluation'],
        gameCount: json['gameCount'],
        image: json['image'],
        name: json['name'],
        winRate: json['winRate']);
  }
}

class SoloRank {
  final String image;
  final String name;

  SoloRank({this.image, this.name});

  factory SoloRank.fromJson(Map<String, dynamic> json) {
    if (json == null) return SoloRank();
    return SoloRank(image: json['image'], name: json['name']);
  }
}

I wrote my flutter information if this could help to get my solutions.

Flutter doctor

[√] Flutter (Channel stable, 1.20.1, on Microsoft Windows [Version 10.0.19041.388], locale ko-KR)

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.0)
[√] Android Studio (version 4.0)
[!] IntelliJ IDEA Community Edition (version 2019.2)
    X Flutter plugin not installed; this adds Flutter specific functionality.
    X Dart plugin not installed; this adds Dart specific functionality.
[√] VS Code (version 1.47.3)
[√] Connected device (1 available)

! Doctor found issues in 1 category.

ADD

I brought my entire error log here.

E/flutter (22270): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: type '_CompactLinkedHashSet<void>' is not a subtype of type 'FutureOr<Map<dynamic, dynamic>>'
E/flutter (22270): #0      _FutureListener.handleError (dart:async/future_impl.dart:160:20)
E/flutter (22270): #1      Future._propagateToListeners.handleError (dart:async/future_impl.dart:708:47)
E/flutter (22270): #2      Future._propagateToListeners (dart:async/future_impl.dart:729:24)
E/flutter (22270): #3      Future._completeError (dart:async/future_impl.dart:537:5)
E/flutter (22270): #4      _AsyncAwaitCompleter.completeError (dart:async-patch/async_patch.dart:47:15)
E/flutter (22270): #5      InputProfileModel.getLolBySummonerName (package:match_making/ui/input/input_profile_model.dart)
E/flutter (22270): <asynchronous suspension>
E/flutter (22270): #6      _InputLolBodyState.build.<anonymous closure> (package:match_making/ui/input/lol/component/input_lol_body.dart:43:30)
E/flutter (22270): <asynchronous suspension>
E/flutter (22270): #7      _InputLolBodyState.build.<anonymous closure> (package:match_making/ui/input/lol/component/input_lol_body.dart)
E/flutter (22270): #8      _InkResponseState._handleTap (package:flutter/src/material/ink_well.dart:992:19)
E/flutter (22270): #9      _InkResponseState.build.<anonymous closure> (package:flutter/src/material/ink_well.dart:1098:38)
E/flutter (22270): #10     GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:184:24)
E/flutter (22270): #11     TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:524:11)
E/flutter (22270): #12     BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:284:5)
E/flutter (22270): #13     BaseTapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:256:7)
E/flutter (22270): #14     GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:158:27)
E/flutter (22270): #15     GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:224:20)
E/flutter (22270): #16     GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:200:22)
E/flutter (22270): #17     GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:158:7)
E/flutter (22270): #18     GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:104:7)
E/flutter (22270): #19     GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:88:7)
E/flutter (22270): #20     _rootRunUnary (dart:async/zone.dart:1206:13)
E/flutter (22270): #21     _CustomZone.runUnary (dart:async/zone.dart:1100:19)
E/flutter (22270): #22     _CustomZone.runUnaryGuarded (dart:async/zone.dart:1005:7)
E/flutter (22270): #23     _invoke1 (dart:ui/hooks.dart:267:10)
E/flutter (22270): #24     _dispatchPointerDataPacket (dart:ui/hooks.dart:176:5)
E/flutter (22270):

Also the json request format too

{
  "evaluation": "string",
  "flexRank": {
    "image": "string",
    "name": "string"
  },
  "icon": "string",
  "level": 0,
  "mosts": [
    {
      "evaluation": "string",
      "gameCount": 0,
      "image": "string",
      "name": "string",
      "winRate": 0
    }
  ],
  "soloRank": {
    "image": "string",
    "name": "string"
  },
  "summonerName": "string"
}

Upvotes: 0

Views: 862

Answers (1)

Johny Saini
Johny Saini

Reputation: 909

              class LolResponse {
                  String evaluation;
                  FlexRank flexRank;
                  String icon;
                  dynamic level;
                  List<Mosts> mosts;
                  FlexRank soloRank;
                  String summonerName;

                  LolResponse(
                      {this.evaluation,
                      this.flexRank,
                      this.icon,
                      this.level,
                      this.mosts,
                      this.soloRank,
                      this.summonerName});

                  LolResponse.fromJson(Map<String, dynamic> json) {
                    evaluation = json['evaluation'];
                    flexRank = json['flexRank'] != null
                        ? new FlexRank.fromJson(json['flexRank'])
                        : null;
                    icon = json['icon'];
                    level = json['level'];
                    if (json['mosts'] != null) {
                      mosts = new List<Mosts>();
                      json['mosts'].forEach((v) {
                        mosts.add(new Mosts.fromJson(v));
                      });
                    }
                    soloRank = json['soloRank'] != null
                        ? new FlexRank.fromJson(json['soloRank'])
                        : null;
                    summonerName = json['summonerName'];
                  }

                  Map<String, dynamic> toJson() {
                    final Map<String, dynamic> data = new Map<String, dynamic>();
                    data['evaluation'] = this.evaluation;
                    if (this.flexRank != null) {
                      data['flexRank'] = this.flexRank.toJson();
                    }
                    data['icon'] = this.icon;
                    data['level'] = this.level;
                    if (this.mosts != null) {
                      data['mosts'] = this.mosts.map((v) => v.toJson()).toList();
                    }
                    if (this.soloRank != null) {
                      data['soloRank'] = this.soloRank.toJson();
                    }
                    data['summonerName'] = this.summonerName;
                    return data;
                  }
                }

                class FlexRank {
                  String image;
                  String name;

                  FlexRank({this.image, this.name});

                  FlexRank.fromJson(Map<String, dynamic> json) {
                    image = json['image'];
                    name = json['name'];
                  }

                  Map<String, dynamic> toJson() {
                    final Map<String, dynamic> data = new Map<String, dynamic>();
                    data['image'] = this.image;
                    data['name'] = this.name;
                    return data;
                  }
                }

                class Mosts {
                  String evaluation;
                  dynamic gameCount;
                  String image;
                  String name;
                  int winRate;

                  Mosts({this.evaluation, this.gameCount, this.image, this.name, this.winRate});

                  Mosts.fromJson(Map<String, dynamic> json) {
                    evaluation = json['evaluation'];
                    gameCount = json['gameCount'];
                    image = json['image'];
                    name = json['name'];
                    winRate = json['winRate'];
                  }

                  Map<String, dynamic> toJson() {
                    final Map<String, dynamic> data = new Map<String, dynamic>();
                    data['evaluation'] = this.evaluation;
                    data['gameCount'] = this.gameCount;
                    data['image'] = this.image;
                    data['name'] = this.name;
                    data['winRate'] = this.winRate;
                    return data;
                  }
                }

Can you try this model and check your api is working or not .

Upvotes: 1

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