I was using Xcode this afternoon and debugging an app on my device just fine. When I got home from the office and plugged in my phone to keep working, XCode would no longer
I had another way of fixing this problem.
I tried upgrading my device to iOS5 Beta 7 ...to test my app in iOS5 Once i finished testing it, wanted to get back to iOS4.3.5 on my device...
it took a little pain but managed to restore it back to the original but then the debugging didn't work and got the same error as mentioned here.
So i wanted to see what i see in that snapshot that you have : and there it was... A button called "enable for debugging" if i'm not mistaken.
Worked like a charm.... :)