🐛 [Firebase Auth Flutter] Sign in with Apple crash on ^3.11.0

[alphasuns]

Bug report

Describe the bug
When I sign in with apple, after the authentication from apple part, the app just crashes.
After some dig-ins, I found the error is caused by giving a nil value to the NSDictionary object.

The current version has added a fourth field (kArgumentAccessToken) to the getNSDictionaryFromAuthCredential result, but the accessToken is always nil, so it throws the error.

Steps to reproduce

Steps to reproduce the behavior:

1. Tap sign in with apple,
2. After apple authentication, the app just crashed,
3. The log indicates:
   Terminating app due to uncaught exception 'NSInvalidArgumentException', reason:

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-L.
__NSPlaceholderDictionary initWithobjects: forKeys:count:]: attempt to insert nil object from objects[3]'

Expected behavior

Should not crash and must work as before.

Sample project

Providing a minimal example project which demonstrates the bug in isolation from your main App greatly enhances the chance of a timely fix.
Please link to the public repository URL.

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Additional context

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Flutter doctor

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Flutter dependencies

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[AndrewPiterov]

The same issue with me. Tested on real device iPhone 7.

Notice, in line 496 we have a OAuthCredential without accessToken. But in case you sign in with Google there will be accessToken. The question is "Why we do not have access token in the case with Apple?"

[lovelessX]

Same issue here with iPhone SE 2.

Flutter 3.3.3.

firebase_core: 1.24.0
firebase_auth: 3.11.0

Works fine with Auth 3.9 or 3.10.

[Lyokone]

Already being worked here: #9638