因为清理磁盘数据，用XCode运行app在模拟器上，提示模拟器不存在
Unable to boot device because it cannot be located on disk
The device’s data is no longer present at /Users/[user name]/Library/Developer/CoreSimulator/Devices/D651BCC7-29FD-4B91-82F6-E255E856EA2F/data.
解决方法
退出XCode，退出模拟器
打开命令行工具Terminal
运行命令
xcrun simctl erase all
