创建Flutter Hello World项目遇'dart:ui'不可用错误求助

报错信息 #

/C:/flutter/packages/flutter/lib/src/material/app.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' as ui;
       ^
/C:/flutter/packages/flutter/lib/src/material/app_bar_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.     
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter/packages/flutter/lib/src/material/arc.dart:6:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter/packages/flutter/lib/src/material/badge_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.       
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter/packages/flutter/lib/src/material/banner_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.      
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter/packages/flutter/lib/src/material/bottom_app_bar_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter/packages/flutter/lib/src/material/bottom_navigation_bar_theme.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.
import 'dart:ui' show lerpDouble;
       ^
/C:/flutter/packages/flutter/lib/src/material/bottom_sheet.dart:5:8: Error: Dart library 'dart:ui' is not available on this platform.      
import 'dart:ui' show lerpDouble;

环境信息 #

• JDK版本：20
• Gradle版本：8.6（distributionUrl为https://services.gradle.org/distributions/gradle-8.6-all.zip）

解决方法 #

1. 基础缓存与依赖重置 #

• 终端执行flutter clean清理项目缓存
• 接着执行flutter pub get重新拉取项目依赖
• 运行flutter doctor检查SDK环境配置，根据提示修复未完成的依赖（比如Android SDK组件、模拟器配置等）

2. 环境兼容性调整 #

• 降级JDK到17版本（Flutter官方推荐的长期支持版本），配置JAVA_HOME环境变量指向JDK17的安装路径
• 检查android/build.gradle中的Gradle插件版本，确保与Gradle 8.6匹配（推荐使用8.2.x版本的插件）

3. 确认运行方式 #

• 确保使用flutter run命令启动项目，不要用纯Dart的dart run命令（dart:ui是Flutter专属库，仅在Flutter运行环境中可用）

4. 重置Flutter SDK #

• 若上述方法无效，下载官方稳定版Flutter SDK替换当前SDK目录，重新配置环境变量后创建新项目测试

内容的提问来源于stack exchange，提问作者RedSMURF