Описание ошибки Я запускаю приложение Flutter на рабочем столе Windows. Я использую главный канал в студии Android, чтобы запустить его на рабочем столе. Я интегрировал firebase в свое приложение, и регистрация входа в систему работает нормально, но когда я пытаюсь добавить или получить данные из моего облачного хранилища, появляется ошибка: «Нет приложения Firebase» [DEFAULT] »не создано - вызовите Firebase. initializeApp () во Flutter и Firebase, что было решено добавлением
void main()
async
{
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
// if (USE_FIRESTORE_EMULATOR) {
// FirebaseFirestore.instance.settings = Settings(
// host: 'localhost:8080', sslEnabled: false, persistenceEnabled: false);
// }
runApp(MyApp());
}
в мое приложение. но после добавления этого я получил эту ошибку:
Launching lib\main.dart on Windows in debug mode...
Building Windows application...
Debug service listening on ws://127.0.0.1:14281/b7FohxM2yN4=/ws
Syncing files to device Windows...
[ERROR:flutter/lib/ui/ui_dart_state.cc(186)] Unhandled Exception: MissingPluginException(No implementation found for method Firebase#initializeCore on channel plugins.flutter.io/firebase_core)
#0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:156:7)
<asynchronous suspension>
#1 MethodChannel.invokeListMethod (package:flutter/src/services/platform_channel.dart:344:35)
<asynchronous suspension>
#2 MethodChannelFirebase._initializeCore (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:30:22)
<asynchronous suspension>
#3 MethodChannelFirebase.initializeApp (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:75:7)
<asynchronous suspension>
#4 Firebase.initializeApp (package:firebase_core/src/firebase.dart:43:9)
<asynchronous suspension>
#5 main (package:res_ds/main.dart:17:4)
<asynchronous suspension>
и это ошибка, которую я не могу решить. После этой ошибки графический интерфейс моего приложения не отображается. Я пробовал несколько решений, доступных в Интернете, но ни одно из них не помогло мне. Я предоставил ниже flutter doctor и pubspec, пожалуйста, посмотрите и помогите мне решить эту проблему. Заранее благодарим Flutter Doctor
flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, 1.27.0-2.0.pre.67, on Microsoft Windows [Version 10.0.19041.804], locale
en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.1)
X Android license status unknown.
Run `flutter doctor --android-licenses` to accept the SDK licenses.
See https://flutter.dev/docs/get-started/install/windows#android-setup for more details.
[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.8.4)
[√] Android Studio (version 4.1.0)
[√] VS Code (version 1.52.1)
[√] Connected device (1 available)
! Doctor found issues in 1 category.
Pubspec.yaml
name: res_ds
description: A new Flutter application.
# The following line prevents the package from being accidentally published to
# pub.dev using `pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
version: 1.0.0+1
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
provider: ^4.3.2+2
http: ^0.12.2
cloud_firestore: ^0.14.2
firebase_core: ^0.5.0
image_picker: ^0.6.7+22
dev_dependencies:
flutter_test:
sdk: flutter
integration_test:
sdk: flutter
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
assets:
- assets/images/
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/assets-and-images/#resolution-aware.
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/assets-and-images/#from-packages
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/custom-fonts/#from-packages
