Compile failing with Flutter 1.20.0 • channel beta because mixin DiagnosticableMixin not found

[zuulu]

The DiagnosticableMixin mixin used at this line is not found at compile time.
After changing it with Diagnoticable it was able to compile successfully.
Please take a look at the possibility to apply this change in a new version of the plugin.

[mzl1988]

[WilliamBz12]

i have the same problem :(

[huanlirui]

flutter_cupertino_date_picker:
git:
url: https://github.com/huanlirui/flutter-cupertino-date-picker
ref: master

[duongvanquyet]

i have the same problem, too :( How to fix :((

[zuulu]

@huanlirui Thank you for the fix
However we can't see new version published on pub.dev, could you check it please.

[zuulu]

@duongvanquyet Hope new version will be published soon
Meanwhile, what you can do is (supposing you are using vscode as editor) : go to the Problems tab, click on

DiagnosticableMixin not found

and replace it with Diagnosticable.