Instruments Unable to connect, the device can not be found, the project cannot find the corresponding app

This kind of problem really lets the person catch the urgency, must bathe the dressing, with a pious heart.

1. Unplug the device (IPHONE/IPAD) and turn off the device. (Long press the Power key)

2. Close Xcode and instruments

3. Restart the device (IPHONE/IPAD) and connect to the computer.

4. Re-open Xcode

5. Open Project Clean (shift+command+k), Build (command+b), Profile (Command+i)

Reference:

http://www.crifan.com/xcode_instruments_choose_target_can_not_find_target_app_and_see_collected_data/

Http://stackoverflow.com/questions/32878283/unable-to-profile-app-on-device-with-ios-9-0-1-using-xcode-7-7-0-1-or-7-1-beta

Instruments Unable to connect, the device can not be found, the project cannot find the corresponding app