iOS 17.5 is not installed. To download and install the platform, open

Xcode, select Xcode > Settings > Platforms, and click the GET button for the

required platform.

Flutter 模拟器需要Xcode模拟器运行， 模拟器自带17.2版本太低

用Xcode 自带get 拉不下来 下载的时候老断 采用离线模式拖进Profiles

https://developer.apple.com/download/all/?q=Xcode  苹果官网找模拟器

下载完成解压

解压完成直接把它拖到Xcode文件夹Profiles里面

找到Xcode 模拟器文件夹 点击Xcode 显示包内容 Contents->Developer->Library->Platforms->iPhoneOS.platform->Library->Developer->CoreSimulator->Profiles

重新启动Xcode