compile error

[JackCho]

$ flutter doctor -v 254 ↵
[✓] Flutter (Channel unknown, 1.22.4, on macOS 11.0.1 20B50 darwin-x64, locale zh-Hans-CN)
• Flutter version 1.22.4 at /Users/caoyubin/Documents/dart/flutter
• Framework revision 1aafb3a8b9 (4 weeks ago), 2020-11-13 09:59:28 -0800
• Engine revision 2c956a31c0
• Dart version 2.10.4
• Pub download mirror https://pub.flutter-io.cn
• Flutter download mirror https://storage.flutter-io.cn

[yushiwo]

碰到和楼主一样的问题。。。

[rodydavis]

Almost finished with the new version compatible with null safety

[rockingdice]

Is there any update?

[dcaminos]

Almost finished with the new version compatible with null safety

@rodydavis first to all, great work here. Can I help you in any way with null safety work? I will be happy to collab on this project

[rodydavis]

Yeah I have been working on the null safe version!

Almost finished and adding more stuff too.

If you need it right now this is where I have been committing the work as it was a rewrite and much cleaner implementation.

https://github.com/rodydavis/flutter_analyzer

[dcaminos]

Thank @rodydavis . I will check it out!

[lixiangsheng2018]

so how to slove this ?I updated dart version 2.16.1, but still failed