Edit and save profile error Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value

Question

I'm trying to implement a ViewController feature to edit and save Profiles with the help of Firebase but, I get the error: Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value when using this code below:

@IBAction func saveButton(_ sender: Any) {
    var data = Data()
    data = profileImage.image!.jpegData(compressionQuality: 0.1)!
    DataService.dataService.SaveProfile(username: usernameTextfield.text!, email: emailTextfield.text!, data: data as NSData)
}

don't use `!` if you are not sure that it must have value use this `?` — Wings, Nov 20 '18 at 09:26

score 2 · Accepted Answer · answered Nov 20 '18 at 09:26

2

You may use following ( if let statements ) to check optional value errors.

@IBAction func saveButton(_ sender: Any) {
    var data = Data()
    if let image = profileImage.image {
        if let data = image.jpegData(compressionQuality: 0.1) {
            DataService.dataService.SaveProfile(username: usernameTextfield.text!, email: emailTextfield.text!, data: data as NSData)
        }
    }
}

answered Nov 20 '18 at 09:26

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the code solved the error, but the save button don't work – potatoonion Nov 20 '18 at 09:50
1

@potatoonion because you don't have a valid image in the image view. – Rakesha Shastri Nov 20 '18 at 10:03
@RakeshaShastri um how do I fix that? – potatoonion Nov 20 '18 at 10:17
It's your image view. You should store an image there? – Rakesha Shastri Nov 20 '18 at 10:35
I tried store a image but nothing still happens when I click on the save button, thought it's also the username and email textfields that don't save either when I try to change it. Maybe something is wrong with the button? – potatoonion Nov 20 '18 at 10:58

Edit and save profile error Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value

1 Answers1