I’m stuck on this part of the CodeHistory project due to the following errors in the Game Model:
E1 & E2: Generic struct ‘Dictionary’ requires that ‘Question’ conform to ‘Hashable’
and
Type ‘Question’ does not conform to protocol ‘Hashable’
E3: Value of type ‘() → ()’ has no member ‘shuffled’
E4: Tuple pattern cannot match values of non-tuple type ‘_’
struct Game {
private(set) var currentQuestionIndex = 0
private(set) var guesses = [Question: Int]() // E1 & E2 here
private(set) var isOver = false
private let questions = Question.allQuestions.shuffled() // E3 here
var guessCount: (correct: Int, incorrect: Int) {
var count: (correct: Int, incorrect: Int) = (0,0)
for (question, guessedIndex) in guesses { // E4 here
if question.correctAnswerIndex == guessedIndex {
count.correct += 1
} else {
count.incorrect += 1
}
}
return count
}
The Question Model:
struct Question: Hashable {
let questionText: String
let possibleAnswers: [String]
let correctAnswerIndex: Int
static var allQuestions = {
Question(questionText: "Who invented the World Wide Web?",
possibleAnswers: [
"Steve Jobs",
"Linus Torvalds",
"Bill Gates",
"Tim Berners-Lee"
],
correctAnswerIndex: 3);
Question(questionText: "What was the first object oriented programming language?",
possibleAnswers: [
"Simula",
"Python",
"Swift",
"C"
],
correctAnswerIndex: 0)
}
}
I made certain there were no typos and that the code matched the lesson. But I could def have missed something. Lol!
I am using a MacBook M1 Pro with OS 12.3.1 and XCode 13.4.1. I was thinking the course is a version behind, maybe? And I’m not sure where to find the version changes, if that’s the case. Any ideas are gratefully welcome. 