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Flutter and cloud_firestore - is not a subtype of type #15007

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Flutter and cloud_firestore - is not a subtype of type#15007
Labels
p: firebaseObsolete - Firebase plugins

Description

@defaultbr
defaultbr
opened on Mar 1, 2018

Steps to Reproduce

import 'dart:async';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import './Screens/home.dart';



Future query() async {
  DocumentSnapshot result = await Firestore.instance.collection('dummydocs').document("doc1").get();
  print("RESULT: " + result.data.toString());
}

void main() {
  query();
  runApp(new MyApp());
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Flutter Demo',
      home: new Home(title:"Nothing Special"),
    );
  }
}

Logs

03-01 00:24:42.975 7906-7926/com.project E/flutter: [ERROR:topaz/lib/tonic/logging/dart_error.cc(16)] Unhandled exception:
    type '_InternalLinkedHashMap' is not a subtype of type 'Map<String, dynamic>' where
      _InternalLinkedHashMap is from dart:collection
      Map is from dart:core
      String is from dart:core
    
    #0      DocumentReference.get (file:///home/tarcisio/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.2.9/lib/src/document_reference.dart)
    <asynchronous suspension>
    #1      query (file:///home/tarcisio/AndroidStudioProjects/test_flutter/lib/main.dart:10:87)
    <asynchronous suspension>
    #2      main (file:///home/tarcisio/AndroidStudioProjects/test_flutter/lib/main.dart:15:3)
    #3      _startIsolate.<anonymous closure> (dart:isolate/isolate_patch.dart:279:19)
    #4      _RawReceivePortImpl._handleMessage (dart:isolate/isolate_patch.dart:165:12)

Run flutter analyze and attach any output of that command also.

Flutter Doctor

-> No Issues found!

Activity

  1. defaultbr
    changed the title [-]Flutter and cloud_firestore[/-] [+]Flutter and cloud_firestore - is not a subtype of type[/+] on Mar 1, 2018

  2. Purus commented on Mar 1, 2018

    @Purus
    Purus
    on Mar 1, 2018

    Sharing what kind of fields are defined in the collection/document will help the team to debug. There are some types which are not supported yet.

  3. Purus commented on Mar 1, 2018

    @Purus
    Purus
    on Mar 1, 2018

    Could be a duplicate of #11799

  4. cbracken
    added
    p: firebaseObsolete - Firebase plugins
    on Mar 1, 2018

  5. cbracken commented on Mar 1, 2018

    @cbracken
    cbracken
    on Mar 1, 2018
    Member

    /cc @collinjackson

  6. defaultbr commented on Mar 1, 2018

    @defaultbr
    defaultbr
    on Mar 1, 2018
    Author

    @Purus

    i did another collection to test and same error:

    - Collection ("example")
-- Document (''test")
--- field: "field_text"

        DocumentSnapshot result = await Firestore.instance.collection('example')
        .document("test")
    .get();

    same error in emulator and real device(with all the playservices ok)

    and keep the same error

  7. defaultbr commented on Mar 2, 2018

    @defaultbr
    defaultbr
    on Mar 2, 2018
    Author

    solved in version 0.2.10 (i was using 0.2.9)

    changes -> flutter-team-archive/plugins@915e260

    thanks guys =) that was fast

  8. defaultbr
    closed this as completedon Mar 2, 2018

  9. jmrboosties commented on May 9, 2018

    @jmrboosties
    jmrboosties
    on May 9, 2018

    Still getting this issue on a recent version of flutter:

    Flutter 0.3.6 • channel dev • https://github.com/flutter/flutter.git
    Framework • revision be09a20 (4 days ago) • 2018-05-04 10:31:53 -0700
    Engine • revision e976be1
    Tools • Dart 2.0.0-dev.53.0.flutter-e6d7d67f4b

    specifically when i try to utilize the json_serializable (https://pub.dartlang.org/packages/json_serializable) package to convert a record from Firebase to an object in Dart.

  10. asoseil commented on May 18, 2018

    @asoseil
    asoseil
    on May 18, 2018

    same problem, is there any workaround?

  11. jmrboosties commented on May 27, 2018

    @jmrboosties
    jmrboosties
    on May 27, 2018

    Sorry for the late response, I had avoided this issue and worked on some other stuff in the project for a while. I think I figured out a fix, but it's extremely goofy...

    Map<String, dynamic> mapJson = document.data;
new MyObject.fromJson(json.decode(json.encode(mapJson))));

    ¯\(ツ)/¯

  12. brilliant-ember commented on Nov 29, 2018

    @brilliant-ember
    brilliant-ember
    on Nov 29, 2018

    I used this approach

    if(json["key"]!= null){ this.active_guests = json["key"].cast<String, int>(); }
    it works fine you just have to cast it to the proper types you want. I think this issue can be closed

  13. kroikie commented on Oct 13, 2019

    @kroikie
    kroikie
    on Oct 13, 2019

    @defaultbr

    This issue has been moved to firebase/flutterfire#899. Any further collaboration will be done there.

  14. kroikie
    added
    transferred
    on Oct 13, 2019

  15. github-actions commented on Aug 27, 2021

    @github-actions
    github-actionsbot
    on Aug 27, 2021

    This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

  16. github-actions
    locked as resolved and limited conversation to collaborators on Aug 27, 2021
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