Stream Chat error Futter

i someone to fix the last dart im having problem with - i created a in app chat with sream chat code import 'dart:js'; import 'package:flutter/[login to view URL]'; import 'package:stream_chat_flutter/[login to view URL]'; import 'package:thebibleapp/pages/[login to view URL]'; class FriendsChat extends StatefulWidget { @override State<FriendsChat> createState() => _FriendsChatState(); } class _FriendsChatState extends State<FriendsChat> { final _keyChannels = GlobalKey<ChannelsBlocState>(); Future<void> _onCreateChannel() async{ final result = await showDialog (context:context, builder: (context){ final channelController = TextEditingController(); return AlertDialog( title: Text('Create Channel'), content: Column( mainAxisSize: [login to view URL], children: [ TextField( controller: channelController, decoration: InputDecoration( hintText: 'Channel Name', ), ), ElevatedButton( onPressed: () => [login to view URL](context).pop([login to view URL]), ), ], ), ); }); if(result !=null){ final client = [login to view URL](context).client; final channel = [login to view URL]('messaging', id: result, extraData: { 'image ': [login to view URL](), }); await [login to view URL](); [login to view URL](); } } @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text('Public Chat'), ), body: RefreshIndicator( onRefresh: [login to view URL], child: StreamChannelListView( controller: channelController, onChannelTap: (channel) => [login to view URL]( context, MaterialPageRoute( builder: (_) => StreamChannel( channel: channel, child: const channelController(), ), ), ); }