升级到新的XCode；can'；t内置Xamarin

我认为上周推出的最后一次XCode升级似乎破坏了我的Xamarin iOS版本。它们失败的原因是：

Failed to locate a valid instance of CoreSimulatorService in the bootstrap.  Adding it now.

或

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有什么见解或想法吗？谢谢

您是否在更新Xcode后打开了它以确保可以使用它创建项目？有时它会做一些“第一次”的初始化，需要先做。是的，我有。。。实际上，它在编译时产生了相同的问题：/<代码>/Users/eric/Desktop/Test/Test/Base.lproj/LaunchScreen.storyboard:内部错误。请在bugreport.apple.com上提交一个bug，并附上~/Library/logs/DiagnosticReports中的所有崩溃日志。。如果Xcode不能工作，Xamarin工具肯定不能工作。我在网上没有看到太多关于这个错误的信息。尝试重新安装Xcode.understand——尽管我从未直接使用过Xcode，您可以理解这个假设。无论如何，卸载和重新安装XCode并没有改变这一点。还有其他想法吗？当然，我完全理解。我在黑暗中拍摄。。。您是否正在使用最新的OSX版本（10.11.X）？我认为7.3需要它。也许可以尝试旧版本的Xcode（7.3）更新后是否打开了Xcode以确保可以使用它创建项目？有时它会做一些“第一次”的初始化，需要先做。是的，我有。。。实际上，它在编译时产生了相同的问题：/<代码>/Users/eric/Desktop/Test/Test/Base.lproj/LaunchScreen.storyboard:内部错误。请在bugreport.apple.com上提交一个bug，并附上~/Library/logs/DiagnosticReports中的所有崩溃日志。。如果Xcode不能工作，Xamarin工具肯定不能工作。我在网上没有看到太多关于这个错误的信息。尝试重新安装Xcode.understand——尽管我从未直接使用过Xcode，您可以理解这个假设。无论如何，卸载和重新安装XCode并没有改变这一点。还有其他想法吗？当然，我完全理解。我在黑暗中拍摄。。。您是否正在使用最新的OSX版本（10.11.X）？我认为7.3需要它。也许可以试试旧版本的Xcode（7.3）

.../SignInUniversalController_iPhone.storyboard: Error: 2016-07-31 12:11:38.046 ibtoold[23284:2756861] [MT] IBPlatformTool: *** Failed to launch tool with description <IBCocoaTouchPlatformToolDescription: 0x7fce44256b20> System content 1x for IBCocoaTouchFramework-NineOneAndLater w/ default fidelity: 
Failed to find or create execution context for description <IBCocoaTouchPlatformToolDescription: 0x7fce44256b20> System content 1x for IBCocoaTouchFramework-NineOneAndLater w/ default fidelity (Failure reason: Software caused connection abort): Failed to find a suitable device for the type SimDeviceType : com.apple.dt.Xcode.IBSimDeviceType.iPad-1x with runtime SimRuntime : 9.3 (13E230) - com.apple.CoreSimulator.SimRuntime.iOS-9-3 (Failure reason: Failed to create SimDeviceSet at path /Users/eric/Library/Developer/Xcode/UserData/IB Support/Simulator Devices. You'll want to check the logs in ~/Library/Logs/CoreSimulator to see why creating the SimDeviceSet failed.): Failed to initialize simulator device set. (Failure reason: Failed to subscribe to notifications from CoreSimulatorService.): Error returned in reply to notification request: Connection invalid (Failure reason: Software caused connection abort)
2016-07-31 12:11:46.096 ibtoold[23284:2756861] [MT] IBPlatformTool: Wrote failed marshalling request diagnostics to path: /var/folders/t9/t9xl93t50ql14mr0lxmmw_2r0000gn/T/IB-agent-diagnostics_2016-07-31_12-11-46_067000
Error: Internal error. Please file a bug at bugreport.apple.com and attach "/var/folders/t9/t9xl93t50ql14mr0lxmmw_2r0000gn/T/IB-agent-diagnostics_2016-07-31_12-11-46_067000".

Failed to find or create execution context for description <IBCocoaTouchPlatformToolDescription: 0x7fce44256b20> System content 1x for IBCocoaTouchFramework-NineOneAndLater w/ default fidelity (Failure reason: Software caused connection abort): Failed to find a suitable device for the type SimDeviceType : com.apple.dt.Xcode.IBSimDeviceType.iPad-1x with runtime SimRuntime : 9.3 (13E230) - com.apple.CoreSimulator.SimRuntime.iOS-9-3 (Failure reason: Failed to create SimDeviceSet at path /Users/eric/Library/Developer/Xcode/UserData/IB Support/Simulator Devices. You'll want to check the logs in ~/Library/Logs/CoreSimulator to see why creating the SimDeviceSet failed.): Failed to initialize simulator device set. (Failure reason: Failed to subscribe to notifications from CoreSimulatorService.): Error returned in reply to notification request: Connection invalid (Failure reason: Software caused connection abort)

Error Domain=NSPOSIXErrorDomain Code=53 "Software caused connection abort" UserInfo={NSLocalizedDescription=Failed to find or create execution context for description <IBCocoaTouchPlatformToolDescription: 0x7fce44256b20> System content 1x for IBCocoaTouchFramework-NineOneAndLater w/ default fidelity, NSUnderlyingError=0x7fce44152c40 {Error Domain=NSPOSIXErrorDomain Code=53 "Software caused connection abort" UserInfo={NSUnderlyingError=0x7fce441b8150 {Error Domain=NSPOSIXErrorDomain Code=53 "Software caused connection abort" UserInfo={NSLocalizedFailureReason=Failed to subscribe to notifications from CoreSimulatorService., NSLocalizedDescription=Failed to initialize simulator device set., NSUnderlyingError=0x7fce44155b00 {Error Domain=NSPOSIXErrorDomain Code=53 "Software caused connection abort" UserInfo=0x7fce441c31b0 (not displayed)}}}, NSLocalizedFailureReason=Failed to create SimDeviceSet at path /Users/eric/Library/Developer/Xcode/UserData/IB Support/Simulator Devices. You'll want to check the logs in ~/Library/Logs/CoreSimulator to see why creating the SimDeviceSet failed., NSLocalizedDescription=Failed to find a suitable device for the type SimDeviceType : com.apple.dt.Xcode.IBSimDeviceType.iPad-1x with runtime SimRuntime : 9.3 (13E230) - com.apple.CoreSimulator.SimRuntime.iOS-9-3}}}

XCode: Version 7.3.1 (7D1014)
Xamarin: Latest Stable; no updates available