Fatal Error with NSLocalizedString due to one system language

Question

I have recently started using localized Strings in my app and today I found this weird issue. For the time being, I support in my app two languages: English (the language of the project) and Italian (my native language). Today I tried changing my language to English and my app crashed with this error "Fatal Error Unexpectedly found nil while unwrapping an Optional value"; now, I know this is an optional-related error but I do not understand what does it mean in this situation. Here's the code from the viewDidLoad method:

photosLabel.text = NSLocalizedString("photosLabelText", comment: "The text of the label under the photo's counter")

And here there's the line from the Localizable.strings (English)

"photosLabelText" = "Photos";

P.S. Looking around in my project I found that in the storyboard under the voice "Localization" English and Italian voice are different; here's the screenshot

Are you sure `photosLabel` is not nil? in what context are you trying to set the `text` property? — ielyamani, Aug 30 '18 at 21:57
Yes...I.m trying to set it in the viewDidLoad method...However the weird thing it's that if the language is Italian it works perfectly. — Lorenzo Santini, Aug 30 '18 at 22:02
Don't you have localized storyboards (or xib)? You may have missed to connect IBOutlet in some of them. — OOPer, Aug 30 '18 at 22:31
Is setting `photosLabel.text` the only line where you are using `NSLocalizedString `? and are you sure it is the one giving this error? — ielyamani, Aug 30 '18 at 22:43
You have multiple storyboards in your project, if you included storyboards when localizing. — OOPer, Aug 30 '18 at 22:50
@Carpsen90 I tried to print the "photosLabel" variable and the compiler gave me the same error. Btw I continue not understanding why this problem happens just with english — Lorenzo Santini, Aug 30 '18 at 22:58
@OOPer I start thinking I didn't implement correctly the localizedString feature...Can you explain me how should I do this? — Lorenzo Santini, Aug 30 '18 at 23:00
@LorenzoSantini I've updated my answer. It's an IBOutlet connection error — ielyamani, Aug 30 '18 at 23:01

ielyamani · Accepted Answer · 2018-08-30T22:55:11.283

0

If photosLabel is an IBOutlet, make sure that you link to it from the (English) storyboard not the (Base).

Note: Change the name of your file Localizable.string to Localizable.strings, it's just a typo.

edited Aug 30 '18 at 22:55

answered Aug 30 '18 at 22:34

ielyamani

17,807
10
55
90

Sorry, my fault...I made a typo, yes, but inside this question, not in my project – Lorenzo Santini Aug 30 '18 at 22:37
Btw I have one more question. What are the differences between the Base main Storyboard and the English one? – Lorenzo Santini Aug 30 '18 at 23:03
Glad I could help – ielyamani Aug 30 '18 at 23:03
@LorenzoSantini The Base is the one used by the app by default, the other languages might be chosen by the user in the Settings. [This](https://developer.apple.com/library/archive/documentation/MacOSX/Conceptual/BPInternational/InternationalizingYourUserInterface/InternationalizingYourUserInterface.html#//apple_ref/doc/uid/10000171i-CH3-SW2) is how base internalization is defined in the docs. – ielyamani Aug 30 '18 at 23:12

Fatal Error with NSLocalizedString due to one system language

1 Answers1