Initializer for conditional binding must have Optional type, not 'String'

Using Swift
1

Hello again eveybody,

I have another problem on my view. It is about 200 lines long. I have the same problem each time I write " guard let billId = bill.id else {"
The problem is the following: Initializer for conditional binding must have Optional type, not 'String'

Here's some examples where we find this line:

            func updatePaymentDateForBill(bill: Bill, paymentDate: Date) {
                guard let userID = Auth.auth().currentUser?.uid else { return }
                guard let billId = bill.id else {
                    print("❌ ID de facture manquant.")
                    return
                }

            func markBillAsUnpaid(bill: Bill) {
                guard let userID = Auth.auth().currentUser?.uid else { return }
                guard let billId = bill.id else {
                    print("❌ ID de facture manquant.")
                    return
                }

If you find the solution you are my God :stuck_out_tongue:

All the best,

2

Bill.id is not optional. Why are you trying to use guard on it?

Also, why are you binding billId at all, if you're not going to use it?

1 Like
3

This might have some ideas if you are new to Swift:

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4

Hello Danny, how are you? Yes, you're right, I've fixed it and now it works :slight_smile: many thanks

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5

Thanks for the link!

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