Xcode升级10.3报错Failed to create new simulator device that matches IBSimDeviceTypeiPad2x

Xcode升级10.3报错Failed to create new simulator device that matches IBSimDeviceTypeiPad2x

升级Xcode10.3，果然不负众望，报错了

error: Failed to find a suitable device for the type IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) with runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4

    Failure Reason: Failed to create new simulator device that matches IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) for runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4 (Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4)

    Underlying Errors:

        Description: Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4

先说第一种方法：（推荐）

重启电脑，搞定！！

第二种方法：

kill掉模拟器进程，命令如下：

$ sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService

接着设置xcode path：

$ sudo xcode-select -s  /Applications/Xcode.app/Contents/Developer

如果还不行，重启模拟器

$ xcrun simctl erase all

搞定！！！