KeychainItemWrapper 'Couldn't add the Keychain Item.'

Question

I want to store access token to keychain. But i got the error: Couldn't add the Keychain Item.'

I checked some posts on stackoverflow like: Storing email in keychain impossible (KeychainItemWrapper)

MyCode:

let a = NSKeyedArchiver.archivedData(withRootObject: "980a872c17a075367357e25e88c1c0476417092a")
let keyWrapper = KeychainItemWrapper.init(identifier: "23123123", accessGroup: nil)
keyWrapper?.setObject(a, forKey: kSecValueData)

1. I tried add this

   keyWrapper?.setObject(kSecAttrAccessible, forKey: kSecAttrAccessible)
   

2. Change kSecValueData to kSecAttrGeneric

I am running Xcode 8 with swift 3.0. Any hints thank you!

EDIT===========================

Viruss mca's answer turn on Share keychain entitlement just work once for me : (

Raasch

Duplicate of #38456971? – Antisepsis

Answer 1

I have recently face this issue with Xcode 8.

To solve the issue You have to add the "Share keychain entitlement" to Xcode capabilities.

There are many users who faced this issue.

Ref: https://forums.developer.apple.com/thread/60617

Firenze

Hi Viruss, it's interesting. This just work for me once. I enabled it. And still same error now. I tried to add KeyChain Groups string into accessGroup parameter, still no help. Any idea? – Raasch

@WilliamHu: where did you get this issue? on device? – Firenze

Both simulator and device. – Raasch

Sorry just for attention, i canceled the accept answer. Thank you anyway! – Raasch

I only see this error in my simulator, on iOS 10 devices it runs fine. I'm very confused. – Miltie

Answer 2

OK, after struggle a long time i found i my Apple account was expired before i update to Xcode8. I solved it by removed my account then login again. And only for device not simulator.

Raasch

The other answer about the Entitlements should really be the accepted answer. – Quinine

Hi @KennyWyland i knew Viruss did provide a good solution, but it doesn't really solve my problem. I have up voted for this answer. Thank you! – Raasch

It didn't solve your problem, but was the reason for it, from the answers provided, was the best one – Calypso