重新获取依赖
flutter pub get
清理 Flutter 项目缓存
flutter clean
构建项目
flutter run
flutter卸载第三方包命令
flutter pub remove flutter_echarts
flutter安装第三方包命令
//安装最新版本 flutter pub add flutter_echarts //安装指定版本 flutter pub add flutter_echarts:2.8.0 //安装特定版本范围 flutter pub add flutter_echarts:^2.8.0