Running "flutter packages get" in flutter_app...
The current Dart SDK version is 2.1.0-dev.1.0.flutter-69fce633b7.
Because xxxx 0.0.16 requires SDK version <2.0.0 ..........
解决办法:其中uhf上文中xxx,也就是报错的三方包,就和
dev_dependencies 中一样的使用方式
dependency_overrides: uhf: path: flutter_uhf/