【Flutter】which doesn‘t support null safety, version solving failed.

问题描述

The current Dart SDK version is 3.0.6.Because flutter_trip depends on cupertino_icons >=0.1.1 <1.0.1 which doesn't support null safety, version solving failed.

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原因分析：

cupertino_icons库依赖版本太低不支持空安全

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解决方案：

去pub.dev上获取cupertino_icons的最新版本。