I was trying to test my app on a new iPad to see if Retina support is working.
Like anyother devices I used for development, I attached the device and pressed "Use For Development" is XCode Organizer.
The process started but a few seconds later the progress bar went away and I received this error message : " An Unknown Error Occurred "
I registered its UDID in devices section manually and the provisioning profile is successfully installed on the device but there still is a yellow dot in front of iPad's name in organizer and the device is not appearing in the iOS Devices list ( so that I cannot run my app on it ).
I tried anything came to my mind but nothing worked out :(
Any ideas ?
Try disconnecting / reconnecting the iPad, quit and restart XCode, ... Sometimes it just won't work and restarting everything solves it !