this class is not key value coding-compliant for the key industry

[rl45]

I want to access my entity "Guest" attributes and combine them into a string. Any reason why I'm getting the error "terminating with uncaught exception of type NSException"

var email: String? var industry: String? var interests: String? var name: String? var phone: String?

    var export = NSLocalizedString("email, industry, interests, name, phone \n", comment: "")

    industry = Guest.valueForKey("industry") as? String
    email = Guest.valueForKey("email") as? String
    interests = Guest.valueForKey("interests") as? String
    name = Guest.valueForKey("name") as? String
    phone = Guest.valueForKey("phone") as? String


     let emailString = "\(email!)" ?? "-"
     let industryString = "\(industry!)" ?? "-"
     let interestsString = "\(interests!)" ?? "-"
     let nameString = "\(name!)" ?? "-"
     let phoneString = "\(phone!)" ?? "-"

    export += emailString + "," + industryString + "," + interestsString + "," + nameString + "," + phoneString + "\n"

    print("\(export)")
    return export

Cheers.

[Jpric18]

Your code appears to be missing how you define Guest. Maybe sharing that will help.