flutter_cupertino_date_picker 编译报错 The type 'DiagnosticableMixin' can't be mixed in 的解决办法

/flutter/.pub-cache/hosted/pub.flutter-io.cn/flutter_cupertino_date_picker-1.0.26+2/lib/src/date_picker_theme.dart:23:7: Error: The type 'DiagnosticableMixin' can't be mixed in.

class DateTimePickerTheme with DiagnosticableMixin {

解决: Flutter 1.22+ 之后DiagnosticableMixin类没有了, 修改date_picker_theme.dart类的源码替换为 Diagnosticable 即可.

 

class DateTimePickerTheme with DiagnosticableMixin {

　　

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原文地址：https://www.cnblogs.com/beansoft/p/15382774.html