LateInitializationError: Field '_origin#101043362' has not been initialized - flutter-dependencies

Question

LateInitializationError: Field '_origin#101043362' has not been initialized. am getting this error
as below, am new to coding
Error displayed when running the app:
Below is the user page
import 'package:edgescope_app/MapUtils.dart';
import 'package:edgescope_app/pages/directions_.dart';
import 'package:edgescope_app/pages/reason_hold.dart';
import 'package:edgescope_app/pages/reason_return.dart';
import 'package:edgescope_app/pages/start_page.dart';
import 'package:flutter/material.dart';
import 'package:edgescope_app/model/user.dart';
import 'package:edgescope_app/pages/start_page.dart';
import 'package:geolocator/geolocator.dart';
class UserPage extends StatelessWidget {
final User user;
const UserPage({
Key? key,
required this.user,
}) : super(key: key);
#override
Widget build(BuildContext context) =>
Scaffold(
appBar: AppBar(
title: Text(user.username),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
CircleAvatar(
backgroundImage: NetworkImage(user.urlAvatar),
radius: 80,
),
const SizedBox(height: 40),
Text(
user.username,
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
fontSize: 28,
),
),
const SizedBox(height: 20),
Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Text('Order number: ',
style: TextStyle(fontSize: 20,
color: Colors.black,
fontWeight: FontWeight.w500)),
Text(user.order,
style: TextStyle(fontSize: 14,
color: Colors.black,
fontWeight: FontWeight.w400)),
]
),
const SizedBox(height: 10),
Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Text('Location: ',
style: TextStyle(fontSize: 20,
color: Colors.black,
fontWeight: FontWeight.w500)),
Text(user.location,
style: TextStyle(fontSize: 14,
color: Colors.black,
fontWeight: FontWeight.w400)),
]
),
const SizedBox(height: 10),
Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Text('Phone number: ',
style: TextStyle(fontSize: 20,
color: Colors.black,
fontWeight: FontWeight.w500)),
Text(user.email,
style: TextStyle(fontSize: 14,
color: Colors.black,
fontWeight: FontWeight.w400)),
]
),
const SizedBox(height: 65),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
RaisedButton.icon(
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
color: Colors.green,
icon: Icon(
Icons.play_circle_outline, color: Colors.white),
label: Text(
'Start',
style: TextStyle(color: Colors.white, fontSize: 12),
),
onPressed: () {
Navigator.of(context).push(new MaterialPageRoute(
builder: (
BuildContext context) => new StartPage(user: user,)));
},),
RaisedButton.icon(
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
color: Colors.blue,
icon: Icon(Icons.location_pin, color: Colors.white),
label: Text(
'Map',
style: TextStyle(color: Colors.white, fontSize: 12),
),
onPressed: () {
Navigator.of(context).push(new MaterialPageRoute(
builder: (
BuildContext context) => new DirectionPage()));
},
),
RaisedButton.icon(
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
color: Colors.amberAccent,
icon: Icon(
Icons.pause_circle_outline, color: Colors.white),
label: Text(
'Hold',
style: TextStyle(color: Colors.white, fontSize: 12),
),
onPressed: () {
Navigator.of(context).push(new MaterialPageRoute(
builder: (
BuildContext context) => new ReasonHold()));
},
),
RaisedButton.icon(
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
color: Colors.redAccent,
icon: Icon(Icons.cancel_outlined, color: Colors.white),
label: Text(
'Return',
style: TextStyle(color: Colors.white, fontSize: 12),
),
onPressed: () {
Navigator.of(context).push(new MaterialPageRoute(
builder: (
BuildContext context) => new ReasonReturn()));
},
),
]
)
],
),
),
);
}
Below is the start page
// ignore_for_file: unnecessary_null_comparison
import 'dart:convert';
import 'package:edgescope_app/blocs/application_bloc.dart';
import 'package:flutter/material.dart';
import 'package:edgescope_app/model/user.dart';
import 'package:geolocator/geolocator.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:provider/provider.dart';
import 'package:edgescope_app/model/directions_model.dart';
import 'package:edgescope_app/model/directions_respository.dart';
class StartPage extends StatefulWidget {
final User user;
const StartPage({Key? key, required this.user}) : super(key: key);
#override
_StartPageState createState() => _StartPageState();
}
class _StartPageState extends State<StartPage> {
static ApplicationBloc _applicationBloc = ApplicationBloc();
static CameraPosition _initialCameraPosition = CameraPosition(
target: LatLng (_applicationBloc.currentLocation.latitude,
_applicationBloc.currentLocation.longitude),
zoom: 14,
);
var locationMessage="";
var clientLocation = "";
var directionInfo ="";
get dio => null;
void getCurrentLocation() async{
var position = await Geolocator
.getCurrentPosition(desiredAccuracy: LocationAccuracy.high);
var lastPosition =await Geolocator.getLastKnownPosition();
print(lastPosition);
var lat = position.latitude;
var long = position.longitude;
print("$lat,$long");
setState(() {
locationMessage ="$lat,$long";
});
}
void getClientLocation() {
}
late GoogleMapController _googleMapController;
late Marker _origin;
late Marker _destination;
late Directions _info;
#override
void dispose() {
_googleMapController.dispose();
super.dispose();
}
#override
Widget build(BuildContext context) {
final applicationBloc = Provider.of<ApplicationBloc>(context);
return Scaffold(
appBar: new AppBar(title: new Text("Start"),
actions: <Widget>[
IconButton(
icon: Icon(Icons.place),
onPressed: () {
getCurrentLocation();
getClientLocation();
},
),
if(_origin != locationMessage)
IconButton(
onPressed: () => _googleMapController.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(
target: _origin.position,
zoom: 14.5,
tilt: 50.0,
),
),
),
icon: Icon(Icons.my_location),
),
if (_destination != null)
IconButton(
onPressed: () => _googleMapController.animateCamera(
CameraUpdate.newCameraPosition(
CameraPosition(
target: _destination.position,
zoom: 14.5,
tilt: 50.0,
),
),
),
icon: Icon(Icons.person_pin_circle_outlined),
)
],
),
body: (applicationBloc.currentLocation == null)?
Center(child: CircularProgressIndicator(),):
ListView(
children: [
Column(children: [
Stack(
children: [
Container(
height: 400.0,
child: GoogleMap(
mapType: MapType.normal,
myLocationEnabled: true ,
zoomControlsEnabled: true,
initialCameraPosition: _initialCameraPosition,
onMapCreated: (controller) => _googleMapController = controller,
markers: {
if (_origin != null) _origin,
if (_destination != null) _destination
},
polylines: {
if (_info != null)
Polyline(
polylineId: const PolylineId('overview_polyline'),
color: Colors.red,
width: 5,
points: _info.polylinePoints
.map((e) => LatLng(e.latitude, e.longitude))
.toList(),
),
},
onLongPress: _addMarker,
),
),
if(_info != null)
Positioned(
top: 20.0,
child: Container(
padding: const EdgeInsets.symmetric(
vertical: 6.0,
horizontal: 12.0,
),
decoration: BoxDecoration(
color: Colors.yellowAccent,
borderRadius: BorderRadius.circular(20.0),
boxShadow: const [
BoxShadow(
color: Colors.black26,
offset: Offset(0, 2),
blurRadius: 6.0,
)
],
),
child: Text(
'${_info.totalDistance}, ${_info.totalDuration}',
style: const TextStyle(
fontSize: 18.0,
fontWeight: FontWeight.w600,
),
),
),
),
]
),
],
),
Text('Find Nearest',style: TextStyle(fontSize: 20,fontWeight: FontWeight.bold),),
Padding(
padding: const EdgeInsets.all(8.0),
child: Wrap(
spacing: 8.0,
children: [
FilterChip(label: Text('Nearest Route'),
onSelected: (val) => applicationBloc.togglePlaceType('direction',val),
selected: applicationBloc.placetype =='direction',
),
FilterChip(label: Text('Nearest Route'),
onSelected: (val) => applicationBloc.togglePlaceType('direction',val),
selected: applicationBloc.placetype =='direction',
),
],
),
),
Padding(
padding: const EdgeInsets.all(20.0),
child: Wrap(
spacing: 220.0,
children: [
FilterChip(label: Text('Accept'),
onSelected: (val) => applicationBloc.togglePlaceType('direction',val),
selected: applicationBloc.placetype =='direction',
backgroundColor: Colors.green,
),
FilterChip(label: Text('Reject'),
onSelected: (val) => applicationBloc.togglePlaceType('direction',val),
selected: applicationBloc.placetype =='direction',
backgroundColor: Colors.red,
),
],
),
),
],
),
);
}
void _addMarker(LatLng pos) async {
if (_origin == null || (_origin != null && _destination != null)) {
// Origin is not set OR Origin/Destination are both set
// Set origin
setState(() {
_origin = Marker(
markerId: const MarkerId('origin'),
infoWindow: const InfoWindow(title: 'Origin'),
icon:
BitmapDescriptor.defaultMarkerWithHue(BitmapDescriptor.hueGreen),
position: pos,
);
// Reset destination
_destination = clientLocation as Marker;
// Reset info
_info = directionInfo as Directions;
});
} else {
// Origin is already set
// Set destination
setState(() {
_destination = Marker(
markerId: const MarkerId('destination'),
infoWindow: const InfoWindow(title: 'Destination'),
icon: BitmapDescriptor.defaultMarkerWithHue(BitmapDescriptor.hueBlue),
position: pos,
);
});
// Get directions
final directions = await DirectionsRepository(dio: dio)
.getDirections(origin: _origin.position, destination: pos);
setState(() => _info = directions!);
}
}
}
Please assist
I have tried to look where the error is coming from but unfortunately am not getting it completely
is there away to clear this error please assist.