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I Build my Unity project to Xcode, trying to install it on ios device. It gives errors like as follow

> Undefined symbol: _Firebase_App_CSharp_FirebaseApp_GetApps
> 
> Undefined symbol:
> _Firebase_App_CSharp_FirebaseApp_RegisterLibrariesInternal
> 
> Undefined symbol:
> _Firebase_Auth_CSharp_AuthResult_AdditionalUserInfoInternal_get
> 
> Undefined symbol:
> _Firebase_Auth_CSharp_AuthResult_CredentialInternal_get
> 
> Undefined symbol: _Firebase_Auth_CSharp_AuthResult_UserInternal_get
> 
> Undefined symbol: _Firebase_Auth_CSharp_AuthResult_UserInternal_set
> 
> Undefined symbol:
> _Firebase_Auth_CSharp_FirebaseAuth_CreateUserWithEmailAndPasswordInternalAsync
> 
> Undefined symbol:
> _Firebase_Auth_CSharp_FirebaseAuth_CreateUserWithEmailAndPasswordInternalAsync_DEPRECATED
> 
> Undefined symbol:
> _Firebase_Auth_CSharp_FirebaseAuth_SignInAndRetrieveDataWithCredentialInternalAsync

totally gives 69 error like this.

I tried to add GameKit.framework, but still continue.

XCode version is: 14.3.1 (14E300c) Firebase pod versions: 10.12.0, also I tried with 10.11.0 and 10.10.0 minimum ios version is:12.0 Unity Version is: 2021.3.16. Firebase Unity SDK is: 11.1.0

and my podfile:

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '12.0'

target 'UnityFramework' do
  pod 'FBSDKCoreKit', '~> 16.0'
  pod 'FBSDKCoreKit_Basics', '~> 16.0'
  pod 'FBSDKGamingServicesKit', '~> 16.0'
  pod 'FBSDKLoginKit', '~> 16.0'
  pod 'FBSDKShareKit', '~> 16.0'
  pod 'FirebaseAuth', '10.11.0'
  pod 'FirebaseCore', '10.11.0'
  pod 'FirebaseDatabase', '10.11.0'
  pod 'FirebaseStorage', '10.11.0'
end
target 'Unity-iPhone' do
end
use_frameworks!

Can anyone assist me on this.

Muhammet Demir
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  • Can you get the Xcode build? Did you try Archive? Is this a runtime error or a build error on the Xcode? – Yusuf Jul 27 '23 at 17:13
  • I get when I trying to install on my device from Xcode. Also I get these errors trying to create archive file. – Muhammet Demir Jul 28 '23 at 11:46
  • did you try `pod repo update` and `pod install` on the terminal while inside your Xcode project path? – Yusuf Jul 28 '23 at 13:43
  • Yes,, I tried it – Muhammet Demir Jul 31 '23 at 06:25
  • It still feels like a pod library error or a library linking error. Maybe you can try these solutions [link](https://stackoverflow.com/questions/42292090/firebase-undefined-symbols-for-architecture-x86-64) – Yusuf Jul 31 '23 at 19:53

2 Answers2

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I also face same error few days ago. Irrespective of your pod file there will be some dll present in your project that trying to call old methods. So either you update your dll files or delete unwanted dll files.

Nitin Jain
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I solved this.

upgraded firebase plugin in Unity to 11.3.0

Muhammet Demir
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