iPhone app is working fine on iOS 4 but crashing on Launch screen at iOS 6

Question

My Log report is.

Dec 21 15:44:26 New-iPod-Accuretech ReportCrash[1652] <Notice>:
   Formulating crash report for process TextBook[1651] Dec 21 15:44:26
   New-iPod-Accuretech kernel[0] <Debug>: launchd[1651] Builtin profile:
   container (sandbox) Dec 21 15:44:26 New-iPod-Accuretech kernel[0]
   <Debug>: launchd[1651] Container:
   /private/var/mobile/Applications/CAD3777B-818F-4020-BCB7-813708315A0B
   (sandbox) Dec 21 15:44:26 New-iPod-Accuretech com.apple.launchd[1]
   (UIKitApplication:com.AccelApp.TextBook[0xfb6c][1651]) <Warning>:
   (UIKitApplication:com.AccelApp.TextBook[0xfb6c]) Job appears to have
   crashed: Trace/BPT trap: 5 Dec 21 15:44:26 New-iPod-Accuretech
   com.apple.launchd[1] (UIKitApplication:com.AccelApp.TextBook[0xfb6c])
   <Notice>: (UIKitApplication:com.AccelApp.TextBook[0xfb6c]) Throttling
   respawn: Will start in 2147483647 seconds Dec 21 15:44:26
   New-iPod-Accuretech backboardd[52] <Warning>: Application
   'UIKitApplication:com.AccelApp.TextBook[0xfb6c]' exited abnormally
   with signal 5: Trace/BPT trap: 5 Dec 21 15:44:26 New-iPod-Accuretech
   ReportCrash[1652] <Error>: libMobileGestalt
   copySystemVersionDictionaryValue: Could not lookup ReleaseType from
   system version dictionary Dec 21 15:44:26 New-iPod-Accuretech
   ReportCrash[1652] <Notice>: Saved crashreport to
   /var/mobile/Library/Logs/CrashReporter/TextBook_2012-12-21-154426_New-iPod-Accuretech.plist
   using uid: 0 gid: 0, synthetic_euid: 501 egid: 0

Answer 1

Just remove your Splash screen image Default-568h@2x.png . And then clean your code and remove previous build and then run again.