my project is working fine when i not upgrade xcode to ios 6..
but after upgrading i ve this error...

collect2: ld terminated with signal 6 [Abort trap: 6]
ld(22918,0x7fff72e6f960) malloc: **\* error for object 0x7fe300c4d130: pointer being freed was not allocated
\*** set a breakpoint in malloc\_error\_break to debug
Command /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/llvm-gcc-4.2 failed with exit code 1

i tried much to find this on net but dont find any similer problem or any solution..
please need help soon....