1.查看依赖树
flutter pub deps
2.清理Flutter缓存
flutter clean
3.清理Gradle缓存
./gradlew cleanBuildCache
4.清理Pub缓存：
flutter pub cache repair
5.获取依赖项：
flutter pub get
6.更新依赖项：
flutter pub upgrade
7.清理Gradle构建：
./gradlew clean
8.重新下载Gradle依赖项：
./gradlew build
