Flutterfire: The following StateError was thrown building: Bad state: field does not exist within the DocumentSnapshotPlatform

[Chandrakant123456]

[darshankawar]

@Chandrakant123456
Please provide flutter doctor -v and a minimal complete reproducible code sample that shows the issue. Just stating the error without any description isn't helpful.

[HamzaKhan1998]

Error Report 👍:

E/flutter (18312): [ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: Bad state: field does not exist within the DocumentSnapshotPlatform
E/flutter (18312): #0 DocumentSnapshotPlatform.get._findKeyValueInMap (package:cloud_firestore_platform_interface/src/platform_interface/platform_interface_document_snapshot.dart:82:7)
E/flutter (18312): #1 DocumentSnapshotPlatform.get._findComponent (package:cloud_firestore_platform_interface/src/platform_interface/platform_interface_document_snapshot.dart:98:41)
E/flutter (18312): #2 DocumentSnapshotPlatform.get (package:cloud_firestore_platform_interface/src/platform_interface/platform_interface_document_snapshot.dart:113:26)
E/flutter (18312): #3 DocumentSnapshot.get (package:cloud_firestore/src/document_snapshot.dart:49:43)
E/flutter (18312): #4 DocumentSnapshot.[] (package:cloud_firestore/src/document_snapshot.dart:56:41)
E/flutter (18312): #5 new Userr.fromDocument (package:fast_access/models/user.dart:100:20)

Error in Code:

factory Userr.fromDocument(DocumentSnapshot doc) {
return Userr(
id: doc.documentID,
email: doc['email'],
username: doc['username'],
url: doc['url'],
profileName: doc['profileName'],
bio: doc['bio'],
_subject1: doc['subject1'],_
subject2: doc['subject2'],

[jschnip]

This is probably related to recent changes in DocumentSnapshot, your factory is looking for the data map, which used to be in doc, but nows its in doc.data() - except DocumentID

So for your factory, one way to change it would be to adjust to:

factory Userr.fromDocument(DocumentSnapshot doc, Map docdata) {
return Userr(
id: doc.id,
email: docdata['email'],
username: docdata['username'],
url: docdata['url'],
profileName: docdata['profileName'],
bio: docdata['bio'],
subject1: docdata['subject1'],
subject2: docdata['subject2'],

and when you call it, you'll need to do something like:

DocumentSnapshot doc = await usersRef.doc(u.uid).get();
Map _docdata = doc.data();
      newUserrr = Userr.fromDocument(doc, _docdata);

[google-oss-bot]

Hey @Chandrakant123456. We need more information to resolve this issue but there hasn't been an update in 7 weekdays. I'm marking the issue as stale and if there are no new updates in the next 7 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!

[ariel139]

I have the same issue please someone help me?

[hiteshgarg123]

Hey @jschnip , Thank you so much for your answer ! I was really having hard time due to recent changes in FlutterFire plugins !
One error was parsing the data using fromDoc method like this ! Thanks again mate.

[Alfie-AD]

I'm getting this error when i try to read a field that doesn't exist yet in the document. Previously it simply returned null and i think that was better.

[Alfie-AD]

I'm getting this error when i try to read a field that doesn't exist yet in the document. Previously it simply returned null and i think that was better.

@Alfie-AD Hey man facing same error, what does it return now? As I need it for an if statement.

Doesn't return anything, only throws that exception. I checked that the field existed first to try to work around
'doc.data().contains(the_field)' will return whether the the field exists or not. Pair it with the value you want in the if statement: 'if(doc.data().contains(the_field) && doc.data()[the_field] == the_value){}'

[Alfie-AD]

@Alfie-AD I have tried and it did not work, so I had to reverse it, here is a screenshot of the code section please advice accordingly on how to fix.

In recent cloud firestore release the data getter was changed to a method data().
Try final profileDocs = profileSnapshot.data(); ...
if you recently updated your package, have a look at the changelog, there are a few more surprises there.

[clearnetinc]

I get this error too. I am building a social media app. I was now working to customize and add more fields to user profile so i added 10 more strings of data i want to collect. I followed the same steps i used to create a blank field for the users to be able to add information:. Everything was working fine before the changes

Debug Error log

════════ Exception caught by widgets library ═══════════════════════════════════
Bad state: field does not exist within the DocumentSnapshotPlatform
The relevant error-causing widget was
StreamBuilder<QuerySnapshot>
lib\pages\timeline.dart:70
════════════════════════════════════════════════════════════════════════════════

The Code Snippet from timeline.dart:70 reads:

buildUsersToFollow() {
  return StreamBuilder(
    stream: usersRef.orderBy('timestamp', descending: true)
    .limit(50)
    .snapshots(),
    builder: (context, snapshot) {
      if (!snapshot.hasData) {
        return circularProgress(context);
      }
      List<UserResult> userResults = [];
      snapshot.data.docs.forEach((doc) {
        User user = User.fromDocument(doc);
        final bool isAuthUser = currentUser.id == user.id;
        final bool isFollowingUser = followingList.contains(user.id);
        // remove auth user from recommended list
        if (isAuthUser) {
          return;
        } else if (isFollowingUser) {
          return;
        } else {
          UserResult userResult = UserResult(user);
          userResults.add(userResult);
        }
        });

        return Container(
          color: Colors.grey.withOpacity(0.2),
          child: Column(
            children: <Widget>[
              Container(
                padding: EdgeInsets.all(12.0),
                child: Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget>[
                    Icon(
                      Icons.person_add_alt_1_outlined,
                      color: Theme.of(context).primaryColor,
                      size: 20,
                    ),
                    SizedBox(width: 6.0,),
                    Text(
                      "Doctors to follow",
                      style: TextStyle(
                        color: Theme.of(context).primaryColor,
                        fontSize: 20,
                      ),
                    ),
                  ],
                ),
              ),
              Column(
                children: userResults
              ),
            ],
          ),
        );

    },
    );
}

  @override
  Widget build(context) {
    return Scaffold(
      appBar: header(context, isAppTitle: true),
      body: RefreshIndicator(
        onRefresh: () => getTimeline(),
        child: buildTimeline(),
      ),
    );
  }
}

Everything was working ok until i made the customization and look to add more

[Arjun009]

snapshot.data.docs.forEach((doc)

Instead, try to do snapshot.data.data().docs.forEach((doc)
I was also getting the same error and I tried with the updated method by adding .data() and it worked fine.

[google-oss-bot]

Hey @Chandrakant123456. We need more information to resolve this issue but there hasn't been an update in 7 weekdays. I'm marking the issue as stale and if there are no new updates in the next 7 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!