Possible Duplicate:
iOS 6 and Location Services not working
Our app's location services have stopped functioning in iOS 6. They work fine in iOS 5. When I call CLLocationManager's startUpdatingLocation method it never prompts the user for access and our app doesn't show up in the Settings Location Services page.
Anyone seen this before? I really have no idea where to look. I have tried stripping down our app to just a single view controller and it still doesn't work. Maybe something in the build settings?
Edit: I created a new target and it works in there.
It looks like the problem was we did not have CFBundleDisplayName declared in the .plist file. We had CFBundleName but not CFBundleDisplayName.
I created the project with XCode 4.4, after install Xcode 4.5 location doesn't work. Declaring in the .plist file key CFBundleDisplayName location now is working.
来源：https://stackoverflow.com/questions/12519733/location-services-not-working-in-ios-6