I think you are going to have to post a bit more information!
Do you have an exception? stacktrace? or log messages?
Thread1: signal SIGBART thrown on this line:
int retVal =UIApplicationMain(argc, argv,@"SFApplication",@"AppDelegate");"
which is in my main.m file.
int main(int argc, char *argv)
NSAutoreleasePool *pool = [[NSAutoreleasePoolalloc] init];
int retVal = UIApplicationMain(argc, argv, @"SFApplication", @"AppDelegate");
Happy to provide dropbox link to xcode project if you want.