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

[kaushik2103]

``import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import 'package:residency/widgets/big_card_total_houses.dart';

class Fetch extends StatefulWidget {
  const Fetch({Key? key}) : super(key: key);

  @override
  State<Fetch> createState() => _FetchState();
}

class _FetchState extends State<Fetch> {
  final db = FirebaseFirestore.instance
      .collection('add_houses')
      .orderBy('house_no')
      .snapshots();

  @override
  Widget build(BuildContext context) {
    double screenWidth = MediaQuery.of(context).size.width;
    double screenHeight = MediaQuery.of(context).size.height;
    return SafeArea(
      child: Scaffold(
        body: StreamBuilder(
          stream: db,
          builder: (context, snapshot) {
            if (snapshot.hasError) {
              return const Center(
                child: Text('Has Error'),
              );
            }
            return ListView.builder(
                itemCount: snapshot.data?.docs.length,
                itemBuilder: (BuildContext context, i) {
                  return BigCardTotalHouses(
                    screenHeight: screenHeight,
                    screenWidth: screenWidth,
                    ownerName: snapshot.data?.docs[i]['owner_name'],
                    blockNo: snapshot.data?.docs[i]['block_no'],
                    mobileNo1: snapshot.data?.docs[i]['mobile_no'],
                    houseNo: snapshot.data?.docs[i]['house_no'],
                    mobileNo2: snapshot.data?.docs[i]['alternate_mobile_no'],
                    members: snapshot.data?.docs[i]['total_member'],
                  );
                });
          },
        ),
      ),
    );
  }
}

`````import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:flutter/material.dart';
import 'package:residency/widgets/big_card_total_houses.dart';

class Fetch extends StatefulWidget {
  const Fetch({Key? key}) : super(key: key);

  @override
  State<Fetch> createState() => _FetchState();
}

class _FetchState extends State<Fetch> {
  final db = FirebaseFirestore.instance
      .collection('add_houses')
      .orderBy('house_no')
      .snapshots();

  @override
  Widget build(BuildContext context) {
    double screenWidth = MediaQuery.of(context).size.width;
    double screenHeight = MediaQuery.of(context).size.height;
    return SafeArea(
      child: Scaffold(
        body: StreamBuilder(
          stream: db,
          builder: (context, snapshot) {
            if (snapshot.hasError) {
              return const Center(
                child: Text('Has Error'),
              );
            }
            return ListView.builder(
                itemCount: snapshot.data?.docs.length,
                itemBuilder: (BuildContext context, i) {
                  return BigCardTotalHouses(
                    screenHeight: screenHeight,
                    screenWidth: screenWidth,
                    ownerName: snapshot.data?.docs[i]['owner_name'],
                    blockNo: snapshot.data?.docs[i]['block_no'],
                    mobileNo1: snapshot.data?.docs[i]['mobile_no'],
                    houseNo: snapshot.data?.docs[i]['house_no'],
                    mobileNo2: snapshot.data?.docs[i]['alternate_mobile_no'],
                    members: snapshot.data?.docs[i]['total_member'],
                  );
                });
          },
        ),
      ),
    );
  }
}