[移动开发]“ flutter pub get”无法获取依赖插件

Running "flutter pub get" in flutter_tools...                      775ms
    lib/page/home/store/storedetail/selectCouponView/selectCouponDialog.dart:5:8: Error: Error when reading
    '../../../../Develop/flutter/.pub-cache/hosted/pub.flutter-io.cn/flutter_widget_from_html_core-0.6.2/lib/flutter_widget_from_html_core.dart': No such file or directory
    import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';
           ^
    lib/page/home/store/storedetail/selectCouponView/selectCouponDialog.dart:333:40: Error: The method 'HtmlWidget' isn't defined for the class '_SelectCouponDialogState'.
     - '_SelectCouponDialogState' is from 'package:xiantiansaleman/page/home/store/storedetail/selectCouponView/selectCouponDialog.dart' ('lib/page/home/store/storedetail/selectCouponView/selectCouponDialog.dart').
    Try correcting the name to the name of an existing method, or defining a method named 'HtmlWidget'.
                                    child: HtmlWidget(cellData.introduction??'无'),

描述：

在pubspec.yaml中删掉了某个依赖项插件，然后有重新引入这个依赖项插件，会发现一直无法拉取成功。

解决办法：

到pub库缓存目录下，例如mac电脑上是/用户/zhimingwen/Develop/flutter/.pub-cache/hosted/pub.flutter-io.cn/ 目录，删除掉目标插件。重新运行flutter pub get就可以了。