LateError (LateInitializationError: Field 'requestPort' has not been initialized [BUG]

[mohamedELamine]

LateError (LateInitializationError: Field 'requestPort' has not been initialized
when i try this code
`import 'dart:async';

import 'package:flutter/material.dart';
import 'package:permission_handler/permission_handler.dart';

import 'package:agora_rtc_engine/agora_rtc_engine.dart';
import 'package:flutter/material.dart';

const String appId = "756d0451e027460dbb9212a2f46c141a";
void main() {
runApp(const MyApp());
}

class MyApp extends StatefulWidget {
const MyApp({super.key});

@OverRide
State createState() => _MyAppState();
}

class _MyAppState extends State {
late RtcEngine agoraEngine; // Agora engine instance
String channelName = "ARyhan";
final GlobalKey scaffoldMessengerKey =
GlobalKey(); // Global key to access the scaffold

String token = "9088f484799548efba2ac5f987c63df9";
int uid = 0; // uid of the local user

bool _isHost =
true; // Indicates whether the user has joined as a host or audience

bool _isJoined = false; // Indicates if the local user has joined the channel
int? _remoteUid; // uid of the remote user

@OverRide
void dispose() async {
await agoraEngine.leaveChannel();
super.dispose();
}

@OverRide
void initState() {
super.initState();
setupVideoSDKEngine();
}

showMessage(String message) {
scaffoldMessengerKey.currentState?.showSnackBar(SnackBar(
content: Text(message),
));
}

Future setupVideoSDKEngine() async {
// retrieve or request camera and microphone permissions
await [Permission.microphone, Permission.camera].request();

//create an instance of the Agora engine
agoraEngine = createAgoraRtcEngine();
await agoraEngine.initialize(const RtcEngineContext(appId: appId));

await agoraEngine.enableVideo();

// Register the event handler
agoraEngine.registerEventHandler(
  RtcEngineEventHandler(
    onJoinChannelSuccess: (RtcConnection connection, int elapsed) {
      showMessage(
          "Local user uid:${connection.localUid} joined the channel");
      setState(() {
        _isJoined = true;
      });
    },
    onUserJoined: (RtcConnection connection, int remoteUid, int elapsed) {
      showMessage("Remote user uid:$remoteUid joined the channel");
      setState(() {
        _remoteUid = remoteUid;
      });
    },
    onUserOffline: (RtcConnection connection, int remoteUid,
        UserOfflineReasonType reason) {
      showMessage("Remote user uid:$remoteUid left the channel");
      setState(() {
        _remoteUid = null;
      });
    },
  ),
);

}

void join() async {
// Set channel options
ChannelMediaOptions options;

// Set channel profile and client role
if (_isHost) {
  options = const ChannelMediaOptions(
    clientRoleType: ClientRoleType.clientRoleBroadcaster,
    channelProfile: ChannelProfileType.channelProfileLiveBroadcasting,
  );
  await agoraEngine.startPreview();
} else {
  options = const ChannelMediaOptions(
    clientRoleType: ClientRoleType.clientRoleAudience,
    channelProfile: ChannelProfileType.channelProfileLiveBroadcasting,
  );
}

await agoraEngine.joinChannel(
  token: token,
  channelId: channelName,
  options: options,
  uid: uid,
);

}

void leave() {
setState(() {
_isJoined = false;
_remoteUid = null;
});
agoraEngine.leaveChannel();
}

Widget _videoPanel() {
if (!_isJoined) {
return const Text(
'Join a channel',
textAlign: TextAlign.center,
);
} else if (_isHost) {
// Local user joined as a host
return AgoraVideoView(
controller: VideoViewController(
rtcEngine: agoraEngine,
canvas: VideoCanvas(uid: uid),
),
);
} else {
// Local user joined as audience
if (_remoteUid != null) {
return AgoraVideoView(
controller: VideoViewController.remote(
rtcEngine: agoraEngine,
canvas: VideoCanvas(uid: _remoteUid),
connection: RtcConnection(channelId: channelName),
),
);
} else {
return const Text(
'Waiting for a host to join',
textAlign: TextAlign.center,
);
}
}
}

// Set the client role when a radio button is selected
void _handleRadioValueChange(bool? value) async {
setState(() {
_isHost = (value == true);
});
if (_isJoined) leave();
}

@OverRide
Widget build(BuildContext context) {
return MaterialApp(
scaffoldMessengerKey: scaffoldMessengerKey,
home: Scaffold(
appBar: AppBar(
title: const Text('Get started with Interactive Live Streaming'),
),
body: ListView(
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 4),
children: [
// Container for the local video
Container(
height: 240,
decoration: BoxDecoration(border: Border.all()),
child: Center(child: _videoPanel()),
),
// Radio Buttons
Row(children: [
Radio(
value: true,
groupValue: _isHost,
onChanged: (value) => _handleRadioValueChange(value),
),
const Text('Host'),
Radio(
value: false,
groupValue: _isHost,
onChanged: (value) => _handleRadioValueChange(value),
),
const Text('Audience'),
]),
// Button Row
Row(
children: [
Expanded(
child: ElevatedButton(
child: const Text("Join"),
onPressed: () => {join()},
),
),
const SizedBox(width: 10),
Expanded(
child: ElevatedButton(
child: const Text("Leave"),
onPressed: () => {leave()},
),
),
],
),
// Button Row ends
],
)),
);
}
}
`

[maxxfrazer]

@mohamedELamine please you use the issue template provided with the GitHub repo.

[jabguru]

Yeah I encountered this same bug after upgrading to the latest version @maxxfrazer @mohamedELamine @Meherdeep @Ascenio

LateError (LateInitializationError: Field 'requestPort' has not been initialized

[Meherdeep]

@jabguru Looks like you're using the agora_rtc_engine package and not the UIKit.

However, the error suggests that you shouldn't be using late instead you should be using a nullable variable.

[jabguru]

Yeah, fixed it, thanks.

[faisalmushtaq007]

i am getting the same issue with agora ui kit