I am trying to launch my app on device. It is launching successfully on the simulator.
One more thing to try if you've tried the above: i found this link about quitting itunes to avoid the timeout. This works for me with xcode 5.1
I cleaned out my provisional profiles, rebooted the iPhone, rebooted the computer, and it worked for me.
After following the above, it still didn't work (from xCode 6). But after rebooting the phone and deleting the app, it worked.
Below two steps solved for me:
For xcode
version: 7.2
This solved in my case.
In my case there was no value at Targets -> Build Settins ->Provisioning Profile. Though Code Signing looked ok)
Just restart my Device and works everything fine