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iOS Build a Simple iPhone App with Swift Structs As Data Models Creating a Data Collection

Garrett Trott
Garrett Trott
18,869 Points

Instance member error on the funFactLabel.text property lines. Is this an issue with swift 4 vs 3?

Hello, I get an error that reads:

Instance member 'facts' cannot be used on type 'FactProvider'

on both instances of the FunFactLabel.text property. is this an issue with swift 3 vs 4? As far as I know, all of my syntax is identical to the course example pl.

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var funFactLabel: UILabel!

    let factProvider = FactProvider()

    override func viewDidLoad() {

        funFactLabel.text = FactProvider.facts[0]  // error: "Instance member 'facts' cannot be used on type 'FactProvider'"


    override func didReceiveMemoryWarning() {
        // Dispose of any resources that can be recreated.

    @IBAction func showFact() {
        funFactLabel.text = FactProvider.facts[1] // error: "Instance member 'facts' cannot be used on type 'FactProvider'"


The second FactProvider.swift file is as follows:

struct FactProvider {
    let facts = [
        "Ants stretch when they wake up in the morning.",
        "Ostriches can run faster than horses.",
        "Olympic gold medals are actually made mostly of silver.",
        "You are born with 300 bones; by the time you are an adult you will have 206.",
        "It takes about 8 minutes for light from the Sun to reach Earth.",
        "Some bamboo plants can grow almost a meter in just one day.",
        "The state of Florida is bigger than England.",
        "Some penguins can leap 2-3 meters out of the water.",
        "On average, it takes 66 days to form a new habit.",
        "Mammoths still walked the Earth when the Great Pyramid was being built."]

2 Answers

Magnus Hållberg
Magnus Hållberg
17,232 Points

I would say this error is because you are not using the instance factProvider but the actual object. Hope this helps.

Garrett Trott
Garrett Trott
18,869 Points

Yes it did help.. factProvider vs FactProvider means a lot in this case. Thanks so much for your help. That was driving me crazy.

Jeff McDivitt
Jeff McDivitt
23,970 Points

Can you please either post your code here or post in GitHub so we can see the issues?

Garrett Trott
Garrett Trott
18,869 Points

Posted the code! Thank you!