Cannot invoke "Int" with an argument of type "String"

Question

When I use this code from apple book in my playground:

let possibleNumber = "123"
let convertedNumber = Int(possibleNumber)

Xcode shows an error:

Cannot invoke "Int" with an argument of type "String"

But compiler should refer convertedNumber as optional, as I understand.

Works fine for me. What version of Xcode are you using? I'm on 7.1.1 — JeremyP
– JeremyP, Commented Nov 26, 2015 at 14:09

Eric Aya · Accepted Answer · 2015-11-26 15:45:42Z

1

You must be using Swift 1.x (in Xcode 6), but the Swift book is for the last version of Swift, currently 2.1 (in Xcode 7). The String initializer for Int() wasn't available in Swift 1.

answered Nov 26, 2015 at 15:45

Eric Aya

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superboy · Accepted Answer · 2015-11-26 15:15:56Z

0

I was able to make this work with no issues. It could be the XCode causing the issue. Try a reinstallation of the XCode.

answered Nov 26, 2015 at 15:15

superboy

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