1、删除catche的坑
[+4379 ms] ../../flutter/.pub-cache/hosted/pub.flutter-io.cn/platform-3.0.0/lib/src/interface/local_platform.dart:46:19: Error: Member not found: 'packageRoot'.
[ +5 ms] io.Platform.packageRoot; // ignore: deprecated_member_use
sdk里的cache被删后，项目和sdk之间没有了联系，所以需要重新生成flutterModel,再次引入flutter模块
接下来的真机运行起来立马蹦，丢失App.framework
图片.png
Library not loaded: @rpath/App.framework/App
Referenced from: /private/var/containers/Bundle/Application/6846EA1B-BF42-4929-934B-38363B86B840/TSZG.app/TSZG
Reason: tried: '/private/var/containers/Bundle/Application/6846EA1B-BF42-4929-934B-38363B86B840/TSZG.app/Frameworks/App.framework/App' (no such file),
重装Cocoapods和ruby-macho：
sudo gem uninstall ruby-macho
sudo gem uninstall cocoapods
sudo gem install ruby-macho
sudo gem install cocoapods
适配空安全
主要是yaml里面插件的适配，别去管warn，先看erro。定义属性加？，非空判断用！
