mac 重装系统后，flutter run构建IOS APP失败

提示错误：

Nagendras-MacBook-Pro:uaenumber nagendra$ flutter run
Launching lib/main.dart on iPhone X in debug mode...
Starting Xcode build...
Xcode build done.                                            1.4s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **

网上找了各种删除Flutter.framework 都没用。
于是直接把项目的IOS目录删掉，用命令行试试能不能直接run，可能创建会自动创建所需文件。
命令行

cd ~/projects/shop
flutter run

提示

Launching lib/main.dart on iPhone XR in debug mode...
No application found for TargetPlatform.ios.
Is your project missing an ios/Runner/Info.plist?
Consider running "flutter create ." to create one.

感觉有希望，create命令可以创建所需文件，于是照着提示输入

flutter create.

上面命令别忘了末尾的.点,自动创建了IOS构建的相关文件
再次

flutter run

成功。