突然应用程序不再启动，3天前，我用同样的代码发布了一个版本，我没有更改任何内容，昨天我去运行它，发现自己有很多错误，我无法解决。我已经搜索并尝试运行以下选项：
- flutter clean
- flutter pub get
- flutter run --no-sound-null-safety
- flutter cache repair
他们不能解决我的问题，这是flutter doctor -v:的结果
[√] Flutter (Channel stable, 2.2.0, on Microsoft Windows [Version
10.0.19042.1466], local it-IT)
• Flutter version 2.2.0 at C: Users Documents flutter
• Framework revision b22742018b (9 months ago), 2021-05-14 19:12:57 -0700
• Engine revision a9d88a4d18
• Dart version 2.13.0
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
• Android SDK at C: Users AppData Local Android sdk
• Android-31 platform, build-tools 30.0.3
• Java binary at: C: Program Files Android Android Studio jre bin java
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C: Program Files Google Chrome Application chrome.exe
[√] Android Studio (version 4.1.0)
• Android Studio at C: Program Files Android Android Studio
• 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
• Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
[√] VS Code, 64-bit edition (version 1.64.2)
• VS Code at C: Program Files Microsoft VS Code
• Flutter extension version 3.34.0
[√] Connected device (2 available)
• Chrome (web) • chrome • web-javascript • Google Chrome 98.0.4758.102
• Edge (web) • edge • web-javascript • Microsoft Edge 96.0.1054.41
• No issues found!
但当我运行flutter run时，我发现自己有这些错误(我没有把它们都放进去，因为有太多(：
/C:/Users/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/google_fonts-2.3.0/lib/google_fonts.dart:142265:7: Error: No named parameter with the name 'displayLarge'.
displayLarge:
^^^^^^^^^^^^
/C:/Users/Documents/flutter/packages/flutter/lib/src/material/text_theme.dart:113:9: Context: Found this candidate, but the arguments don't match.
const TextTheme({
^^^^^^^^^
/C:/Users/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/lottie-1.2.2/lib/src/lottie.dart:48:5: Error: 'AssetBundle' isn't a type.
AssetBundle? bundle,
^^^^^^^^^^^
/C:/Users/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/lottie-1.2.2/lib/src/lottie_builder.dart:137:5: Error: 'AssetBundle' isn't a type.
AssetBundle? bundle,
^^^^^^^^^^^
FAILURE: Build failed with an exception.
* Where:
Script 'C:UsersDocumentsflutterpackagesflutter_toolsgradleflutter.gradle' line: 1035
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:UsersDocumentsflutterbinflutter.bat'' finished with non-zero exit value 1
* 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 54s
Running Gradle task 'assembleDebug'... 55,2s
Exception: Gradle task assembleDebug failed with exit code 1
你知道如何解决这件事吗？它看起来像是一个缓存问题，但我试图用相同的版本重新安装flutter，但我没有修复任何
这是我的pubspec.yaml
version: 1.2.13+73
environment:
sdk: ^2.7.0
flutter: ^1.26.1
dependencies:
flutter:
sdk: flutter
flutter_localizations:
sdk: flutter
audioplayers: ^0.19.1
autocomplete_textfield: ^1.7.3
expansion_card: ^0.1.0
barcode_scan2: ^4.1.3
blue_print_pos: ^0.0.5
cool_alert: any
device_info: ^2.0.0
flutter_config: ^1.0.8
flutter_credit_card: ^2.0.0
flutter_html: any
flutter_phoenix: ^0.1.0
flutter_riverpod: ^0.14.0+3
flutter_search_bar: ^2.1.0
flutter_stripe: ^1.0.1+3
flutter_user_agent: ^1.2.2
google_fonts: ^2.1.0
in_app_review: any
menu_button: ^1.2.1
package_info: ^0.4.3+2
pay: ^1.0.2
permission_handler: ^4.0.0
qr_flutter: ^4.0.0
rflutter_alert: ^2.0.2
share: ">=0.6.5+4 <2.0.0"
shared_preferences: ^2.0.5
sizer: ^1.1.8
tinycolor: ^1.0.3
url_launcher: any
vibration: ^1.7.3
wakelock: ^0.4.0
chewie: any
dev_dependencies:
flutter_test:
sdk: flutter
http: ^0.13.3
flutter:
assets:
- assets/
- assets/audio/cancel.mp3
- assets/audio/invio.mp3
- assets/audio/moltiplica.mp3
- assets/audio/reparto.mp3
- assets/audio/ricevuta.mp3
- assets/audio/tastiera.mp3
- assets/audio/beep.mp3
fonts:
- family: CustomIcon
fonts:
- asset: assets/fonts/CustomIcon.ttf
请尝试删除版本依赖项的符号^。
我最近遇到了一个问题，我试图降级flutter，所以解决了它。
您必须升级您的flutter SDK