问题：Could not locate device support files. This iPhone 6s is running iOS 12.1 (16B5059d), which may not be supported by this version of Xcode.
目的：为了低版本的Xcode可以run 高版本的设备需要高版本的设备支持文件
资源：iOS-DeviceSupport Files 下载地址： https://github.com/iGhibli/iOS-DeviceSupport
方式：下载后拷贝到 文件路径：/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport 即可
原文：https://www.cnblogs.com/ITCoderW/p/9698809.html