Fatal error: unexpectedly found nil while unwrapping an Optional values [duplicate]

Answer 1

I got his error when i was trying to access UILabel. I forgot to connect the UILabel to IBOutlet in Storyboard and that was causing the app to crash with this error!!

Answer 2

Nil Coalescing Operator can be used as well.

rowName = rowName != nil ?rowName!.stringFromCamelCase():""

Answer 3

I was having this issue as well and the problem was in the view controllers. I'm not sure how your application is structured, so I'll just explain what I found. I'm pretty new to xcode and coding, so bear with me.

I was trying to programmatically change the text on a UILabel. Using "self.mylabel.text" worked fine until I added another view controller under the same class that didn't also include that label. That is when I got the error that you're seeing. When I added the same UILabel and connected it into that additional view controller, the error went away.

In short, it seems that in Swift, all view controllers assigned to the same class have to reference the code you have in there, or else you get an error. If you have two different view controllers with different code, assign them to different classes. This worked for me and hopefully applies to what you're doing.

Answer 4

fatal error: unexpectedly found nil while unwrapping an Optional value

1. Check the IBOutlet collection , because this error will have chance to unconnected uielement object usage.

:) hopes it will help for some struggled people .

Answer 5

Replace this line cell.labelTitle.text = "This is a title"
with cell.labelTitle?.text = "This is a title"

Answer 6

Check if the cell is being registered with self.collectionView.registerClass(cellClass: AnyClass?, forCellWithReuseIdentifier identifier: String). If so, then remove that line of code.

See this answer for more info: Why is UICollectionViewCell's outlet nil?

"If you are using a storyboard you don't want to call this. It will overwrite what you have in your storyboard."