降级JDK/SDK后Flutter项目类型不匹配报错求助

核心问题是同一个类被从两个不同路径导入，导致Dart将其识别为完全不同的类型——比如AppState/_1/来自package:格式路径，AppState/_2/来自本地绝对路径，两者被判定为不兼容类型，进而引发Reducer、中间件、Stream的类型匹配错误。

/D://maghsala//maghsala_customer//lib//main.dart:49:11: Error: The argument type 'AppState/_1/ Function(AppState/_1/, dynamic)' can't be assigned to the parameter type 'AppState/_2/ Function(AppState/_2/, dynamic)'.
- 'AppState/_1/' is from 'package:maghsala_customer/states/AppState.dart' ('lib/states/AppState.dart').
- 'AppState/_2/' is from '/D://maghsala//maghsala_customer//lib//states/AppState.dart'.
appReducer,
^

/D://maghsala//maghsala_customer//lib//main.dart:51:15: Error: The argument type 'List<dynamic Function(Store<AppState/_1/>, dynamic, dynamic Function(dynamic))>' can't be assigned to the parameter type 'List<dynamic Function(Store<AppState/_2/>, dynamic, dynamic Function(dynamic))>'.
- 'List' is from 'dart:core'.
- 'Store' is from 'package:redux/src/store.dart' ('/C:/flutter/.pub-cache/hosted/pub.dartlang.org/redux-4.0.0+3/lib/src/store.dart').
- 'AppState/_1/' is from 'package:maghsala_customer/states/AppState.dart' ('lib/states/AppState.dart').
- 'AppState/_2/' is from '/D://maghsala//maghsala_customer//lib//states/AppState.dart'.
createStoreMiddleWare(LoginRepository(), UserRepository()),
^

/D://maghsala//maghsala_customer//lib//main.dart:61:60: Error: A value of type 'Stream<ConnectivityStatus/_1/>' can't be assigned to a variable of type 'Stream<ConnectivityStatus/_2/>'.
- 'Stream' is from 'dart:async'.
- 'ConnectivityStatus/_1/' is from 'package:maghsala_customer/enums/connectivity_status.dart' ('lib/enums/connectivity_status.dart').
- 'ConnectivityStatus/_2/' is from '/D://maghsala//maghsala_customer//lib//enums/connectivity_status.dart'.
ConnectivityService().connectionStatusController.stream,
^

FAILURE: Build failed with an exception.
- Where:
Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 904
- What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\flutter\bin\flutter.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 34s
Exception: Gradle task assembleDebug failed with exit code 1

1. 统一导入路径
   检查所有文件中导入AppState、ConnectivityStatus等本地类的语句，确保全部使用package:格式导入，禁止混用绝对路径或相对路径。例如：

   • 替换绝对路径导入：import '/D://maghsala//maghsala_customer//lib//states/AppState.dart';
   • 改为package路径：import 'package:maghsala_customer/states/AppState.dart';

2. 清理项目缓存
   依次执行以下命令：

   flutter clean
   flutter pub get
   

   之后重启你的IDE（如VS Code/Android Studio），必要时清除IDE缓存（Android Studio可通过File -> Invalidate Caches / Restart操作）。

3. 验证pubspec配置
   打开项目根目录的pubspec.yaml文件，确认name字段值为maghsala_customer——这是package路径导入的核心依据，若名称不匹配会导致导入识别异常。

4. 检查类型定义一致性
   确认appReducer的参数、返回类型，以及中间件createStoreMiddleWare的泛型约束，均使用统一导入后的AppState类型，避免因导入错误残留的类型不一致问题。

内容的提问来源于stack exchange，提问作者Dark Legend