CODEWITHSUNDEEP
iosswiftcrash
Rutger Huijsmans
Rutger Huijsmans

Reputation: 2408

App crashes on iOS 8.4

The app runs perfect on iOS 9.3 however when I try to run it on iOS 8.4 it crashes. It seems like it's crashing on the stuff I've linked up interface builder. Everything however is referenced to and since its runs fine on iOS 9.3 I know nothing is nil.

enter image description here

Upvotes: 1

Views: 116

Answers (2)

Rutger Huijsmans
Rutger Huijsmans

Reputation: 2408

we weren't loading the ViewControllers correctly. We were doing this: 

mainViewController = TabViewController()

That works perfectly on iOS9 but on iOS8 one has to do this: 

mainViewController = TabViewController(nibName: "TabView", bundle: nil)

Upvotes: 2

Ketan Parmar
Ketan Parmar

Reputation: 27428

replace ! with ? in your outlets because you are changing it's different properties so it should be optional.

for example,

  @IBOutlet weak var signupButton: UIButton?
  //make every outlet optional which you will change in future

hope this will help :)

Upvotes: 0

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