FXKeychain failed to retrieve data for key 'token', error: -34018

[kidsid49]

This error comes sometimes while reading data from shared keychain by multiple apps. Can somebody explain what's causing this?

[altyus]

I'm having the same issue

[joekh]

me too FXKeychain failed to retrieve data for key

[14lox]

+1

[14lox]

Apple are aware of it... https://forums.developer.apple.com/thread/4743#14441

UPDATE: We have finally been able to reproduce the -34018 error on iOS 8.3. This is the first step in identifying the root cause and then coming up with a fix.

As usual, we can't commit to a release timeframe, but this has affected many developers and we really want to get this resolved.

In the meantime, for a workaround, try adding a small delay in application:didFinishLaunchingWithOptions and applicationDidBecomeActive: before accessing the keychain. However, we know this hasn't worked in at least one case. Now that we have a reproducible case, I can experiment with the delay and see if I can come up with a recommended value.```

[Air-Craft]

Is it only when accessing the keychain right at launch? I'm getting this well after the app launch...

[emonster]

Having the same issue. Is there a solution to this problem? Thanks

[bmatthys]

Having the same issue and the workaround that Apple provided with the delay is not working for me either. Hope there will be a fix in a new iOS version soon though.

[maxoly]

Having the same issue only when running in debug mode with Xcode with the device connected to the debugger.

[sp3esu]

Having the same issue only when running in debug mode with Xcode/AppCode with the device connected to the debugger...

[piogab]

Same issue here in iOS 9.2.1. When device is not connected to the debugger it works ok for me.

[bimusiek]

Same issue with iOS 10 and iPhone 7 simulator...

[jboulter11]

@bimusiek and all others getting this issue:

If you're getting this issue now, it's likely because iOS 10 now requires a new entitlement for keychain usage. Here's the fix:
https://forums.developer.apple.com/thread/60617

Go to your project target and under capabilities add Keychain Sharing to your app. It immediately resolved my issues.

[bimusiek]

@jboulter11 Yes, you are right. I forgot to reply here after I found the solution.

Confirmed, you have to enable Keychain Sharing, however for me this is not really the solution for people that do not want to share Keychain :) However, the fault is at Apple side.