Workaround: Xcode27 下载iOS 27.0 Simulator

问题

解压缩Xcode_27_beta.xip后正常安装，但是发现下载iOS 27 runtime的时候一直卡住，切了各种环境都无效果。

方案

基于xcodebuild安装

切换默认的xcode

• 参考Apple官方的文档https://developer.apple.com/documentation/xcode/downloading-and-installing-additional-xcode-components#Download-and-install-new-hardware-support-in-between-Xcode-releases

• Xcode_27_beta.xip默认解压后叫Xcode-beta.这里我重命名叫 Xcode27-beta，为了方便区别主Xcode

• Xcode27-beta拖进/Applications文件夹

• 下面命令开始切换默认xcode

xcode-select -s /Applications/Xcode27-beta.app 
xcodebuild -runFirstLaunch -checkForNewerComponents

使用xcodebuild下载

• 官方文档https://developer.apple.com/documentation/xcode/downloading-and-installing-additional-xcode-components#Download-Xcode-components-from-the-command-line

执行

xcodebuild -downloadPlatform iOS -architectureVariant arm64

会输出

Finding content...
Downloading iOS 27.0 Simulator (24A5355p) (arm64): 70.2% (5.89 GB of 8.39 GB)

• 注意，要指定arm64。下面是我没有指定然后告诉我找不到

xcodebuild -downloadPlatform iOS -exportPath ~/Downloads

Automatically resolved architecture variant for platform iOS as 'universal'.
No matching downloadable found for platform: iOS
No downloadable was found for iOS.

下载完成后，实际上他直接帮我安装好了。我在下载目录没看到他。因此下面的步骤不需要了

使用xcodebuild安装下载的runtime image

• 官方文档https://developer.apple.com/documentation/xcode/downloading-and-installing-additional-xcode-components#Install-downloaded-packages-from-the-command-line

xcodebuild -importPlatform "~/Downloads/iOS 27 beta Simulator Runtime.dmg"