我安装了 Xcode-11-beta 和 macOS 10.15 beta。起初我可以正常使用 SwiftUI 预览版。但是当我尝试将 Xcode-beta 从最初安装的 ~/Downloads 目录移动到 /Applications 后，预览无法工作。这是错误:
所以我把它移回~/Downloads，希望一切能像以前一样顺利。但它给出了同样的错误。
之后我重新安装了它，但仍然出现此错误。谁能帮我解决这个问题吗？
诊断报告内容是这样的:
== DATE:
Wednesday, June 5, 2019 at 10:25:46 PM China Standard Time
== PENDING U
PDATE REASONS:
== PREVIEW UPDATE ERROR:
unexpected error occurred
Error Domain=com.apple.CoreSimulator.SimError Code=161 "The iOS 13.0 simulator runtime is not available." UserInfo={NSLocalizedRecoverySuggestion=Download the iOS 13.0 simulator runtime from the Components section in Xcode's Preferences., NSLocalizedFailureReason=runtime path not found, NSLocalizedDescription=The iOS 13.0 simulator runtime is not available.}
== VERSION INFO:
Tools: 11M336w
OS: 19A471t
== ENVIRONMENT:
[x] In valid workspace
[x] Project is using the new build system
Previews are available for targets that are built with the new build system. Change your project to use the new build system.
[x] Selected scheme (Landmarks)
Select a scheme from the scheme picker in the toolbar
[x] Selected run destination (iPhone 8)
Select a run destination from the scheme picker in the toolbar
[x] Have workspace arena
Try quitting and reopening your workspace
[x] Have build arena
Try quitting and reopening your workspace
[x] Open file has supported build settings
最佳答案
CoreSimulator 目前不喜欢 simruntime捆扎物从其下方移出。通过从 ~/Downloads 启动它意识到iOS.simruntime对于 iOS 13，那么您就移动了它。
在这种特定情况下，您可以通过杀死 com.apple.CoreSimulator.CoreSimulatorService 来解决该问题.
关于ios - iOS 13.0模拟器运行时不可用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56462769/