The phone has been upgraded to 10.1, but XCode (8.0) does not support it.
The solution is: download the SDK and put it in
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport。
Restart XCode.
The phone has been upgraded to 10.1, but XCode (8.0) does not support it.
The solution is: download the SDK and put it in
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport。
Restart XCode.