crash_info_entry_0: CoreUI: deallocating _CUIInternalLinkRendition ... Assets.car

Question

When inspecting a crash with Firebase Crashlytics, I noticed the following line in the Keys section:

CoreUI: deallocating _CUIInternalLinkRendition 7113 /private/var/containers/Bundle/Application/1E06D0B4-30EA-41CA-998C-D8E86AA94100/.app/Assets.car

Is this related to the assets in my app? A memory issue in CoreUI?

Answer 1

I have a player and the crash happened when I was force removing a time observer from the player. But the timeObserverToken is nil.

The Fix: Just unwrap token with if let before using!

func endPlayerObserving () {    //BAD CODING, Don't ever force unwrap optional objects     player?.removeTimeObserver(timeObserverToken!) }