在安装macOS和Xcode 8之后，iOS模拟器无法使用Xcode 7.3.1

Question

安装macOS Sierra + Xcode 8 beta后

我的Xcode 7.3.1无法再运行iOS模拟器，

我该如何解决这个问题？

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)

Answer 1

短期解决方案：

• 构建应用
• 即使出现错误
，该应用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
• 点击调试＆gt;附加到流程＆gt;您的应用名称

不推荐这样做，因为每次要运行应用时都必须这样做。

长期解决方案（推荐）：

从开发人员中心重新安装Xcode。这样做会清除此错误，应用程序将顺利运行。

Answer 2

这应该有用。

1. 构建应用
2. 即使出现错误
，该应用仍将安装在模拟器上
3. 在模拟器上手动启动应用程序
4. 转到Xcode
5. 点击调试＆gt;附加到流程＆gt;您的应用名称

Answer 3

我通过删除XCode 7.3.1和8 Beta并从DMG重新安装只是 XCode 7.3.1来修复此问题。