Xcode 10上的iOS模拟器崩溃

问题描述：

今天，我已经将我的iMac从macOS High Sierra更新为macOS Mojave.从那时起，我无法打开模拟器.每次我尝试打开立即崩溃的模拟器时.每当我尝试通过Xcode运行模拟器时，Xcode都会显示此错误

Today, I've updated my iMac to macOS Mojave from macOS High Sierra. Since then I'm not able to open simulator. Every time I tried to open the simulator that crashes immediately. Whenever I tried to run the simulator via Xcode then Xcode shows this error

超时，等待iphonesimulator的模拟器应用程序准备就绪

Timed out waiting for the simulator application for iphonesimulator to become ready

此外，我尝试直接打开模拟器，它立即崩溃.此处的gif(gif有点慢)-

Also, I tried to open the simulator directly and it's crash immediately. Here the gif (gif is a little bit slow) -

系统CPU和内存状态-

这里有一些我尝试过但没有运气的解决方案-

清除iPhone模拟器缓存

Clear iPhone Simulator Cache

xcrun simctl erase all

清除派生数据

Clear DerivedData

~/Library/Developer/Xcode/DerivedData/

清除iOS设备支持

Clear iOS DeviceSupport

~/Library/Developer/Xcode/iOS DeviceSupport/

删除Xcode首选项

Delete Xcode Preferences

defaults delete com.apple.dt.Xcode

重新启动Xcode&系统

Restart Xcode & System

更新1

macOS日志-

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Device iPhone XS (978302BA-5255-44CB-A77C-188071B99A7C, iOS 12.0, Booted) is available but has no defaultDisplay'
*** First throw call stack:
(
    0   CoreFoundation                      0x00007fff33a9543d __exceptionPreprocess + 256
    1   libobjc.A.dylib                     0x00007fff5f9a6720 objc_exception_throw + 48
    2   CoreFoundation                      0x00007fff33ab008e +[NSException raise:format:arguments:] + 98
    3   Foundation                          0x00007fff35e4c55d -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 194
    4   Simulator                           0x000000010e7510da Simulator + 106714
    5   libdispatch.dylib                   0x00007fff60a24d4f _dispatch_call_block_and_release + 12
    6   libdispatch.dylib                   0x00007fff60a25dcb _dispatch_client_callout + 8
    7   libdispatch.dylib                   0x00007fff60a2c120 _dispatch_lane_serial_drain + <…>
)

答

此命令应该可以解决您的问题(先关闭sim，然后再打开):

This command should fix your issue (close sim before and open after):

sudo killall -10 com.apple.CoreSimulator.CoreSimulatorService

此后，重新启动Xcode，如果模拟器不可用，那么我们需要从Windows> Device and Simulators

After this, restart Xcode and if simulator not available then we need to add them manually from Windows > Device and Simulators

Xcode 10上的iOS模拟器崩溃

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