“ ValidationError”不能转换为“ Error”；您是要使用“ as！”吗？ 强迫垂头丧气？

Question

Hello I'm new to Swift development. I'm developing a code for user input field validation. I've imported Validator and SwiftValidator libraries. I couldn't get rid of this error. I followed the updated syntax too but still the error persists.

Here is the code:

func addFieldValidation()  {

        var emailRules = ValidationRuleSet<String>()
        emailRules.add(rule: ValidationRulePattern(pattern: .EmailAddress, error: ValidationError(textField:emailTextField, error: "Enter valid email address"))) //****<---Getting error here******


        emailTextField.validationRules=emailRules;

        emailTextField.validateOnInputChange(enabled:  true);

        emailTextField.validationHandler = { result in
            switch result {
            case .valid:
                self.enableSignUp(true)
            case .invalid(let failureErrors):
                let messages = failureErrors.map { $0.message }//****<---Getting error here as "Value of type 'Error' has no member 'message' "******
                print(messages)
                self.enableSignUp(false)
            }
        }


    }

Thanks in advance.

Answer 1

I have a different way of email validation

// email validation method
    func isValidEmail(emailAddress:String) -> Bool {
        // print("validate calendar: \(testStr)")
        let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,}"

        let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
        return emailTest.evaluate(with: emailAddress)
    }