A three year old package would be an issue with Flutter. The move to Dart 2 was not backwards compatible. That said, there's an effort in the community to find

A three year old package would be an issue with Flutter. The move to Dart 2 was not backwards compatible. That said, there's an effort in the community to find maintainers for older packages that people find useful. If you come across something that you need, post back, or shoot me an email.