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/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/usr/lib/dyld' has changed; re-reading symbols.
`/xcode iOS/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/usr/lib/dyld' has changed; re-reading symbols.
continue
`/xcode iOS/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/usr/lib/dyld' has changed; re-reading symbols.
`/xcode iOS/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/usr/lib/dyld' has changed; re-reading symbols.
warning: Unable to read symbols for /xcode iOS/Platforms/iPhoneOS.platform/DeviceSupport/4.2.1 (8C148)/Symbols/usr/lib/info/dns.so (file not found).

I don't know what is happening here.

Is there any issues, when we get this kind of warning messages ?

Answer 1

I'm sure this will solve your problem: UUID mismatch detected with the loaded library

• Johannes

Answer 2

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.