iOS模拟器赢得'；安装macOS和Xcode 8后，请不要使用Xcode 7.3.1

安装macOS Sierra+Xcode 8测试版后

我的Xcode 7.3.1无法再运行iOS模拟器

我怎样才能解决这个问题

这是系统日志

Jun 15 07:46:11 Siams-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.CoreSimulator.CoreSimulatorService[2246]): Service exited due to signal: Killed: 9 sent by com.apple.CoreSimulator.CoreSimu[2246]
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: com.apple.CoreSimulator.CoreSimulatorService 209.19 starting.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device D340C405-CF9F-482C-82CE-ADE8A2399529 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device C3CBAFAD-D139-49CE-9EF1-E2437A2349A7 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device 0916CCBC-1DAA-4CA4-8DCA-FFD87C8941E0 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.
Jun 15 07:46:12 Siams-MacBook-Pro com.apple.CoreSimulator.CoreSimulatorService[2748]: Default device 9CC780B5-3034-4083-B52F-2354FB0A8252 is no longer in the set, and an alternative could not be found.  iPhone / Watch pairings may not be correct.

另一个日志

Jun 15 10:03:26 Siams-MacBook-Pro DTServiceHub[11482]: DTServiceHub[11482]: [error] 'mach_msg_send' failed: (ipc/send) invalid destination port (268435459)
Jun 15 10:03:36 Siams-MacBook-Pro Xcode[10188]: +[DTServiceHubClient localConnectionWithAuthorization:returningServerPid:]: failed to establish connection with DTServiceHub service '/Applications/Xcode.app/Contents/SharedFrameworks/DVTInstrumentsFoundation.framework/Resources/DTServiceHub'
Jun 15 10:03:36 Siams-MacBook-Pro Xcode[10188]: Xcode[10188]: [error] 'mach_msg_send' failed: (ipc/send) invalid destination port (268435459)

这应该行得通

构建应用程序

即使出现错误，该应用程序仍将安装在模拟器上

在模拟器上手动启动应用程序

转到Xcode

单击调试>附加到进程>您的应用程序名称

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短期解决方案：

• 构建应用程序
• 即使出现错误，该应用程序仍将安装在模拟器上
• 在模拟器上手动启动应用程序
• 转到Xcode
• 单击调试>附加到进程>您的应用程序名称

不建议您这样做，因为您必须在每次运行应用程序时都这样做

长期解决方案（推荐）：

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从开发人员中心重新安装Xcode。这样做将清除此错误，应用程序将顺利运行。

我通过删除XCode 7.3.1和8 Beta并重新安装DMG中的XCode 7.3.1来修复此问题。

检查您是否已安装XCode的所有相关更新，在安装Sierra之前，它工作得很好。通过从可能的副本下载XCode，重新安装XCode对我来说很有效