This iPhone 6 is running iOS 10.3 (14E277), which may not be supported by this version of Xcode.
iPhon 6升级到了10.3后，原来的Version 8.2.1 (8C1002)要运行之前的程序，不支持了，又需要升级Xcode了
升级到Xcode 8.3版本才行，兼容: macOS 10.12或更高版本
Xcode 8.3
Includes macOS, iOS, watchOS, and tvOS SDKs.
https://developer.apple.com/download/
原因：由于Xcode 8.2.1没有10.3 iOS的支持环境
ls /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
可列表所有的支持设备
10.0 10.1 10.2 (14C89) 8.0 8.1 8.2 8.3 8.4 9.0 9.1 9.2 9.3
想来一个权宜之计
ln -s "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/10.2 (14C89)" /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/10.3
但是仍然报错
An error was encountered while enabling development on this device.
Please try rebooting and reconnecting the device. (0xE8000076)
于是重启之，还是报同样的错误，于是只能升级了！
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本帖最后由 YuLimin 于 2017-4-5 08:54 编辑 ]
