So I want use Leaks to find the leaks in my app. In Xcode, I go to "Product" and then hit "Profile". In Instruments I select Leaks and it starts. My app is starting and Leaks is running. But just as soon as my app is finished starting and I can use it, Leaks stops.
Is there anybody else with the same problem or maybe knows how to fix this?
I've seen this happen when an incorrect provisioning profile is used when building the app and running on a physical device.
You shouldn't see this kind of error when running it in the simulator - it should work as intended. If you're using the simulator in this situation and are you still seeing this behaviour, I would encourage you to go to http://bugreport.apple.com and file a bug regarding this issue, giving as much detail as you possibly can.
If you're using a physical device, ensure you're using a valid provisioning profile and certificate/key pair and that the device is included in the profile.