Even after adding this -
final messages = snapshot.data.documents.reversed;
Chat messages are in random order

Here, I've removed the error by returning the Column at the very last but the screen do not display any message at that time. Please help me!

when run with android device
Pixel 4 API 31 ( android-arm64-aarch64 )
this my debug console

F/m.android.phon(10563): runtime.cc:668]   native: #35 pc 00000000000b19a0  /apex/com.android.runtime/lib64/bionic/libc.so (__pthread_start(void*)+264)
F/m.android.phon(10563): runtime.cc:668]   native: #36 pc 000000000005144c  /apex/com.android.runtime/lib64/bionic/libc.so (__start_thread+64)
F/m.android.phon(10563): runtime.cc:668]   at android.os.HwBlob.getString(Native method)
F/m.android.phon(10563): runtime.cc:668]   at android.hardware.radio.V1_6.SetupDataCallResult.readEmbeddedFromParcel(SetupDataCallResult.java:266)
F/m.android.phon(10563): runtime.cc:668]   at android.hardware.radio.V1_6.SetupDataCallResult.readFromParcel(SetupDataCallResult.java:235)
F/m.android.phon(10563): runtime.cc:668]   at android.hardware.radio.V1_6.IRadioResponse$Stub.onTransact(IRadioResponse.java:6325)
F/m.android.phon(10563): runtime.cc:668]
F/m.android.phon(10563): runtime.cc:676] JNI DETECTED ERROR IN APPLICATION: input is not valid Modified UTF-8: illegal continuation byte 0x7f
F/m.android.phon(10563): runtime.cc:676]     string: '`�M��'
F/m.android.phon(10563): runtime.cc:676]     input: '0x60 0x05 0x4d 0xf0 <0x7f>'
F/m.android.phon(10563): runtime.cc:676]     in call to NewStringUTF
F/m.android.phon(10563): runtime.cc:676]     from java.lang.String android.os.HwBlob.getString(long)
✓  Built build/app/outputs/flutter-apk/app-debug.apk.
Error connecting to the service protocol: failed to connect to http://127.0.0.1:65440/ElxNbg9yDpY=/
Exited (sigterm)

The current Dart SDK version is 3.0.5.

Because clima requires SDK version >=2.12.0 <3.0.5, version solving failed.

code is exactly matched with the lesson but these two errors came out of nowhere:-

lib/screens/chat_screen.dart:14:3: Error: Type 'FirebaseUser' not found.
FirebaseUser loggedInUser;
^^^^^^^^^^^^
lib/screens/chat_screen.dart:12:7: Error: The non-abstract class '_ChatScreenState' is missing implementations for these members:

• State.build
  Try to either
• provide an implementation,
• inherit an implementation from a superclass or mixin,
• mark the class as abstract, or
• provide a 'noSuchMethod' implementation.

class _ChatScreenState extends State {
^^^^^^^^^^^^^^^^
/C:/flutter/packages/flutter/lib/src/widgets/framework.dart:1428:10: Context: 'State.build' is defined here.
Widget build(BuildContext context);
^^^^^
lib/screens/chat_screen.dart:14:3: Error: 'FirebaseUser' isn't a type.
FirebaseUser loggedInUser;
^^^^^^^^^^^^

I followed steps to register new user using firebase and
when i click on the register button no thing happens and user not added in firebase.
this message displayed:

I/BiChannelGoogleApi( 2003): [FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzaq@278608d
W/DynamiteModule( 2003): Local module descriptor class for com.google.firebase.auth not found.
W/GooglePlayServicesUtil( 2003): Google Play Store is missing.

In Xcode, Go to Product -> Scheme -> Select New Scheme. Then choose FirebaseCore as Target and Name. Now build the project and then change back to your app target. It works for me in Xcode 9.1

After importing and using the text kit plugin, the Text becomes invincible, it can be seen disappearing in the background colour, this is really upsetting @angelabauer or anyone
any help fixing this problem?

Having error on 'The Flutter ListView' Video
so the flash chat only 1 data is appearing while the rest is cover by a red error box

`class MessageBubble extends StatelessWidget {
MessageBubble({this.sender, this.text});

final String sender;
final String text;

@OverRide
Widget build(BuildContext context) {
return Padding(
padding: EdgeInsets.all(10.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
Text(
sender,
style: TextStyle(
fontSize: 12.0,
color: Colors.black54,
),
),
Material(
borderRadius: BorderRadius.circular(30.0),
elevation: 5.0,
color: Colors.lightBlueAccent,
child: Padding(
padding: EdgeInsets.symmetric(vertical: 10.0, horizontal: 20.0),
child: Text(
text,
style: TextStyle(
color: Colors.white,
fontSize: 15.0
),
),
),
),
],
),
);
}
}
`

Here is the code

TypewriterAnimatedTextKit( text: ['Flash Chat'], textStyle: TextStyle( fontSize: 45.0, fontWeight: FontWeight.w900, ), ),

does anyone have the update of this tutorial, this process is old and so my register screen cannot navigate into the chat screen, tried to follow all the processes of migrating and updating deprecated codes but still no avail. I am literally going nuts here.
I keep seeing this in the run Console;
"Ignoring header X-Firebase-Locale because its value was null."
what is this and how do i fix it, better still has anyone passed this tutorial epsiode in 2020, current day. Pleaassse help me, I am new to flutter programming

my android studio is unable to run the chat app with the following error

Flutter crash report; please file at https://github.com/flutter/flutter/issues.

command

flutter build bundle --suppress-analytics --target D:\courses\flash-chat-flutter\lib\main.dart --filesystem-scheme org-dartlang-root --track-widget-creation --compilation-trace-file compilation.txt --depfile D:\courses\flash-chat-flutter\build\app\intermediates\flutter\debug/snapshot_blob.bin.d --asset-dir D:\courses\flash-chat-flutter\build\app\intermediates\flutter\debug/flutter_assets --debug

exception

FileSystemException: FileSystemException: Cannot open file, path = 'D:\courses\flash-chat-flutter\build\app\intermediates\flutter\debug/flutter_assets\packages/cupertino_icons/assets/CupertinoIcons.ttf' (OS Error: The system cannot find the path specified.
, errno = 3)

#0      _File.open.<anonymous closure> (dart:io/file_impl.dart:364:9)
#1      _rootRunUnary (dart:async/zone.dart:1132:38)
#2      _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#3      _FutureListener.handleValue (dart:async/future_impl.dart:126:18)
#4      Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45)
#5      Future._propagateToListeners (dart:async/future_impl.dart:668:32)
#6      Future._completeWithValue (dart:async/future_impl.dart:483:5)
#7      Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:513:7)
#8      _rootRun (dart:async/zone.dart:1124:13)
#9      _CustomZone.run (dart:async/zone.dart:1021:19)
#10     _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#11     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#12     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#13     _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:115:13)
#14     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:172:5)

flutter doctor

[✓] Flutter (Channel stable, v1.5.4-hotfix.2, on Microsoft Windows [Version 10.0.17763.437], locale en-US)
    • Flutter version 1.5.4-hotfix.2 at C:\Users\ahmed\flutter\Sdk
    • Framework revision 7a4c33425d (3 weeks ago), 2019-04-29 11:05:24 -0700
    • Engine revision 52c7a1e849
    • Dart version 2.3.0 (build 2.3.0-dev.0.5 a1668566e5)

[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at C:\Users\ahmed\AppData\Local\Android\sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: D:\programs\Android\AndroidStudio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
    • All Android licenses accepted.

[✓] Android Studio (version 3.3)
    • Android Studio at D:\programs\Android\AndroidStudio
    • Flutter plugin version 34.0.1
    • Dart plugin version 182.5215
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)

[✓] IntelliJ IDEA Community Edition (version 2019.1)
    • IntelliJ at C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.3.4
    • Flutter plugin version 35.3.3
    • Dart plugin version 191.7141.49

[!] VS Code (version 1.33.1)
    • VS Code at C:\Users\ahmed\AppData\Local\Programs\Microsoft VS Code
    ✗ Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (1 available)
    • Android SDK built for x86 • emulator-5554 • android-x86 • Android 9 (API 28) (emulator)

! Doctor found issues in 1 category.

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:mergeDebugResources'.

java.util.concurrent.ExecutionException: com.android.builder.internal.aapt.v2.Aapt2InternalException
: AAPT2 aapt2-3.2.1-4818971-windows Daemon #0: Daemon startup failed
This should not happen under normal circumstances, please file an issue if it does.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log
  output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 1m 3s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done 64.0s

The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app.
See https://goo.gl/CP92wY for more information on the problem and how to fix it.

Gradle task assembleDebug failed with exit code 1

Go to Podfile and add as follows:
pod 'Firebase/Core', :modular_header => true
pod 'Firebase/Core', :modular_header => true

how to put the most recent message at the bottom

After logging in or registered not

navigate to ChatScreen instead shows this error

Even i have provided the latest json file it is showing platform exception,the api key is invalid during run time.
I have tried everything but nothing help.
Please help.

The following NoSuchMethodError was thrown while handling a gesture:
The getter 'email' was called on null.
Receiver: null
Tried calling: email
// This is the message that I am getting

Need help to resolve this.

flutter/flutter#62747
Here is the full code I posted on official flutter community

The app is themed in dark mode, thus the text in the app is white by default. This is problematic because the textfields are on a white background so you can't see the text.

I cannot use the keyword firebaseuser and currentuser in the method that is under the chat screen.
If I use the firebaseuser it is striked out as [ info: 'FirebaseUser' is deprecated and shouldn't be used. Deprecated in favor of User. When updating your code it is recommended to namespace your 'firebase_auth' import to avoid class naming conflicts if you already have a 'User' class in your project e.g. import 'package:firebase_auth/firebase_auth.dart' as auth;, User then becomes auth.User.. (deprecated_member_use at [flash_chat] lib\screens\chat_screen.dart:14)]

and for currentuser keyword it says the expression cannot be invoked

the messages do not get ordered in firestore and hence i an=m unable to retrieve them in order to display on the chat screen.

The color property is not available thus making it invisible due to white background.

I followed all the steps in firebase configuration, every time I go to the registration page I got this error

"No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp()"

According to the tutorial on Udemy,
The hint text in the text fields should be visible on the login screen and welcome screen's text fields but it is not for my android emulator. And I haven't changed anything in this project.

Expected Behaviour

Actual Behaviour