"Argument passed to call that takes no arguments" when creating an object

Question

I have an error in using a Swift class. When I am trying to create a new object like so

let prod_obj = Produs(nume: nume_prod, cod_bare: cod_ext)

I get the error "Argument passed to call that takes no arguments" and I don't know why. I've read some docs and this is the exact same way they do it. This is how my class looks:

class Produs {
    var nume: String!
    var cod_bare: String!
}

I am thinking I might need to add an initializer but I don't see why that is necessary in my case.

Answer 1

You can get the synthesized init using an Struct, like so

struct Produs {
    let nume: String
    let codBare: String
}
let prodObj = Produs(nume: numeProd, codBare: codBare)

For a class you either provide an initializer:

class Produs {
    var nume: String
    var codBare: String

    init (nume: String, codBare: String) {
        self.nume = nume
        self.codBare = codBare
    }
}
let prodObj = Produs(nume: numeProd, codBare: codBare)

Or

class Produs {
    var nume: String!
    var codBare: String!
}

let prodObj = Produs()
prodObj.nume = numeProd
prodObj.codBare = codBare

Note: Avoid using underscores in variable names, use camelCase such as codBare