warning: Unable to read symbols

Question

When I try to run my app in iOS 4.2.1, I am getting following warning messages;

[Switching to thread 11523]
[Switching to thread 11523]
`/xcode iOS/Platforms         


        

Answer 1

The problem is that Xcode and the debugger expect iOS 4.2, but your device runs iOS 4.2.1.

What you can do to avoid this error; Let Xcode gather the needed symbols from your device (you may have to delete previous ones). After this, it will work without any problem.