Question

I have received a project from a client that I need to compile, but when I run it gives error Application windows are expected to have a root view controller at the end of application launch and EXC_BAD_Access (code=2, address=0x0)

as far as I know this is due to application:didFinishLaunchWithOptions: in the AppDelegate, but the problem with my project is that there is no AppDelegate file.

EDIT:

I tried to run the project on Xcode 4.5.1 now it is giving the error address doesn't contain a section that points to a section in a object file.

Answer 1

The problem is that there is no AppDelegate file. That is usually where the root view controller is set

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
  // Override point for customization after application launch.
  self.viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];

  // set root view controller
  self.window.rootViewController = self.viewController;
  [self.window makeKeyAndVisible];
  return YES;
}