After building and starting the checklist app in the simulator the app behaves strange.I’ve completed the tutorial.All feature are implemented.On the AllListsViewcontroller i press the + button to add a new checklist.The Checklist ViewController appears but the TableView disappears and it is same when i want to add a new ChecklistItem on the Add Item ViewController.Don’t know what is going on.
Everything was fine at the beginning maybe i did something wrong but what ? I don’t know 
