Yesterday I testet a lot on my device. Suddenly I get this error message when I hit Build & Go in Xcode. First, it asks me if it’s ok to sign with my key. I click yes, and then that error message appears. My iPod is connected as usual, iTunes starts automatically and I close that to prevent interruptions.
I tried restarting Xcode. Doesn’t help. My Apple Dev Enrollment is brand new. Any idea what the problem might be?
Edit: In Window > Organizer I can see this message:
Your mobile device has encountered an
unexpected error (0xE8000001) Try
disconnecting and powering off the
device; then power the device on and
reconnect it.
I restarted it with power-off, but I still get that message.
I’ve had this happen before as well. I’m not sure what caused it either, but in most instances powering the phone off and back on again solved the problem.