[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Null check operator used on a null value.

[infinite-dev22]

What bug do you experience? 🐞

When trying to create a room,I get an error: Null check operator used on a null value.

How can it be reproduced? 🤔

1. Create a User.
2. Create a room.
3. Error occurs at Step 2.

What behavior is expected? 💡

A new chat room is created.

Screenshots or videos 📸

Code snippets 📝

types.User user = types.User(
  firstName: userProfile.name,
  id: userProfile.userId, // UID from Firebase Authentication
  imageUrl: userProfile.profilePicture,
  lastName: '',
);

await FirebaseChatCore.instance.createUserInFirestore(user);

final room = await FirebaseChatCore.instance.createRoom(user, metadata: { // Error occurs here.
  'imageUrl': userProfile.profilePicture,
  'name': userProfile.name,
  'listingId': widget.listing.id,
  'listingName': widget.listing.name,
});

Environment info

Please specify the flutter, flutter_firebase_chat_core versions.

flutter: 3.13.0 flutter_firebase_chat_core: 1.6.7

flutter doctor -v output 👇

[✓] Flutter (Channel stable, 3.13.0, on Ubuntu Mantic Minotaur (development branch) 6.5.1-060501-generic, locale en_US.UTF-8)
    • Flutter version 3.13.0 on channel stable at /home/infinite/snap/flutter/common/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision efbf63d9c6 (4 weeks ago), 2023-08-15 21:05:06 -0500
    • Engine revision 1ac611c64e
    • Dart version 3.1.0
    • DevTools version 2.25.0

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.2)
    • Android SDK at /home/infinite/Android/Sdk
    • Platform android-33, build-tools 33.0.2
    • Java binary at: /home/infinite/.local/share/JetBrains/Toolbox/apps/android-studio/jbr/bin/java
    • Java version OpenJDK Runtime Environment (build 17.0.8+0-17.0.8b1000.8-10699129)
    • All Android licenses accepted.

[✓] Chrome - develop for the web
    • Chrome at google-chrome

[✓] Linux toolchain - develop for Linux desktop
    • clang version 10.0.0-4ubuntu1
    • cmake version 3.16.3
    • ninja version 1.10.0
    • pkg-config version 0.29.1

[✓] Android Studio (version 2023.2)
    • Android Studio at /home/infinite/.local/share/JetBrains/Toolbox/apps/android-studio
    • Flutter plugin version 75.1.4
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.8+0-17.0.8b1000.8-10699129)

[✓] IntelliJ IDEA Community Edition (version 2023.2)
    • IntelliJ at /home/infinite/.local/share/JetBrains/Toolbox/apps/intellij-idea-community-edition
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart

[✓] VS Code (version 1.82.1)
    • VS Code at /usr/share/code
    • Flutter extension can be installed from:
      🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (3 available)
    • F 04K (mobile)  • 578024c9 • android-arm64  • Android 10 (API 29)
    • Linux (desktop) • linux    • linux-x64      • Ubuntu Mantic Minotaur (development branch) 6.5.1-060501-generic
    • Chrome (web)    • chrome   • web-javascript • Google Chrome 116.0.5845.187

[✓] Network resources
    • All expected network resources are available.

• No issues found!

Platform

Device (e.g. Android emulator, iOS simulator, Samsung Galaxy S21): Fujitsu F 04K

OS version (e.g. iOS 14.5, Android 11): Android 10