我正在开发一个使用 firebase 包的应用程序。 它在开发过程中工作正常，但是当我尝试使用 flutter run --release 发布时，它显示以下错误：
Unhandled Exception: MissingPluginException(No implementation found for method Firebase#initializeC
ore on channel plugins.flutter.io/firebase_core)
E/flutter (18843): #0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:157)
E/flutter (18843): <asynchronous suspension>
E/flutter (18843): #1 MethodChannel.invokeListMethod (package:flutter/src/services/platform_channel.dart:345)
E/flutter (18843): <asynchronous suspension>
E/flutter (18843): #2 MethodChannelFirebase._initializeCore (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:30)
E/flutter (18843): <asynchronous suspension>
E/flutter (18843): #3 MethodChannelFirebase.initializeApp (package:firebase_core_platform_interface/src/method_channel/method_channel_firebase.dart:75)
E/flutter (18843): <asynchronous suspension>
E/flutter (18843): #4 Firebase.initializeApp (package:firebase_core/src/firebase.dart:44)
E/flutter (18843): <asynchronous suspension>
E/flutter (18843): #5 main (package:flutter_firebase_chat/main.dart:10)
E/flutter (18843): <asynchronous suspension>
我认为是项目的问题，所以我创建了一个新的 Flutter 项目，我已经复制了 lib 目录并修复了运行项目的所有需要。
但在发布模式上仍然存在同样的问题。
这是我的 pusbec.yaml 文件：
'
name: my_project
description: A new Flutter project.
version: 1.0.0+1
environment:
sdk: ">=2.1.0 <3.0.0"
dependency_overrides:
intl: ^0.17.0-nullsafety.2
dependencies:
flutter:
sdk: flutter
firebase_core: ^0.7.0
firebase_auth: ^0.20.0+1
cloud_firestore: ^0.16.0
firebase_storage: ^7.0.0
timeago: ^2.0.26
email_validator: ^1.0.4
flutter_bloc: ^4.0.0
image_picker: ^0.6.5+2
platform_action_sheet: ^0.0.3
photo_view: ^0.9.2
flutter_slidable: ^0.5.4
agora_rtc_engine: ^3.2.1
permission_handler: ^3.0.0
file_picker: ^2.1.4
open_file: ^3.0.3
dio: ^3.0.10
path_provider: ^1.6.24
flutter_cached_pdfview: ^0.3.3
url_launcher: ^5.7.10
flutter_svg: ^0.19.2+1
firebase_database: ^6.0.0
bubble: ^1.1.9+1
rflutter_alert: ^1.0.3
shared_preferences: ^0.5.12+4
easy_localization: ^2.3.3+1
cupertino_icons: ^1.0.2
dev_dependencies:
flutter_test:
sdk: flutter
flutter:
uses-material-design: true
assets:
- assets/
fonts:
- family: Almarai
fonts:
- asset: assets/fonts/Almarai-Bold.ttf
- asset: assets/fonts/Almarai-ExtraBold.ttf
- asset: assets/fonts/Almarai-Light.ttf
- asset: assets/fonts/Almarai-Regular.ttf