[Bug] DllNotFoundException: Unable to load DLL 'FirebaseCppApp-11_8_1' occurs only on iOS builds

[beboldlab-lhj]

Description

This bug occurs when you connect to the device and run it in xcworkspace after building iOS.

Here's what I've tried:

First, the xcworkspace file was not created when building, so I changed 10.22.0 to 9.6.0 in the ~.xml files in the Asset/Firebase/Editor path.

1. I tried changing the settings in the Firebase SDK configuration files (bundle, so, dll, etc.) to be included in IOS, but I got the same bug or it didn't build at all.

2. I tried deleting and reinstalling the Firebase SDK and the Google Ads Unity I used together, or installing a different version, but the bug was the same.

3. I tried including unityframwork.framework in build phase->link binary with libraries in xcworkspace, but the same bug occurs.

4. I thought the Unity version was the problem, so I downgraded 2023.2.16f1 to LTS 2022.3.13f1, but the same problem occurs.

5. I also updated the versions of macos and xcode to the latest version, but the bug was the same.

Reproducing the issue

No response

Firebase Unity SDK Version

11.8.1

Unity editor version

2023.2.16f1

Installation Method

.unitypackage

Problematic Firebase Component(s)

No response

Other Firebase Component(s) in use

Analytics, Authentication, Crashlytics, Database, Messaging, Remote Config

Additional SDKs you are using

Unity Google Ads 9.0.0, Google SignIn 1.0.4

Targeted Platform(s)

Apple Platforms

Unity editor platform

Mac

Scripting Runtime

IL2CPP

Release Distribution Type

Pre-built SDK from https://firebase.google.com/download/unity

Relevant Log Output

DllNotFoundException: Unable to load DLL 'FirebaseCppApp-11_8_1'. Tried the load the following dynamic libraries: Unable to load dynamic library '/FirebaseCppApp-11_8_1' because of 'Failed to open the requested dynamic library (0x06000000) dlerror() = dlopen(/FirebaseCppApp-11_8_1, 0x0005): tried: '/FirebaseCppApp-11_8_1' (no such file)
  at Firebase.AppUtilPINVOKE+SWIGExceptionHelper.SWIGRegisterExceptionCallbacks_AppUtil (Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate applicationDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate arithmeticDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate divideByZeroDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate indexOutOfRangeDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate invalidCastDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate invalidOperationDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate ioDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate nullReferenceDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate outOfMemoryDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate overflowDelegate, Firebase.AppUtilPINVOKE+SWIGExceptionHelper+ExceptionDelegate systemExceptionDelegate) [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.AppUtilPINVOKE+SWIGExceptionHelper..cctor () [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.AppUtilPINVOKE..cctor () [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.AppUtil.SetLogFunction (Firebase.LogUtil+LogMessageDelegate arg0) [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.LogUtil..ctor () [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.LogUtil..cctor () [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.FirebaseApp..cctor () [0x00000] in <00000000000000000000000000000000>:0 
  at Firebase.Database.FirebaseDatabase.get_DefaultInstance () [0x00000] in <00000000000000000000000000000000>:0

If using CocoaPods for Apple platforms, the project's Podfile.lock

Expand Podfile.lock snippet

👀 Replace this line with the contents of your Podfile.lock!

PODS:
  - AppAuth (1.7.3):
    - AppAuth/Core (= 1.7.3)
    - AppAuth/ExternalUserAgent (= 1.7.3)
  - AppAuth/Core (1.7.3)
  - AppAuth/ExternalUserAgent (1.7.3):
    - AppAuth/Core
  - Firebase/Analytics (9.6.0):
    - Firebase/Core
  - Firebase/Auth (9.6.0):
    - Firebase/CoreOnly
    - FirebaseAuth (~> 9.6.0)
  - Firebase/Core (9.6.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (~> 9.6.0)
  - Firebase/CoreOnly (9.6.0):
    - FirebaseCore (= 9.6.0)
  - Firebase/Crashlytics (9.6.0):
    - Firebase/CoreOnly
    - FirebaseCrashlytics (~> 9.6.0)
  - Firebase/Database (9.6.0):
    - Firebase/CoreOnly
    - FirebaseDatabase (~> 9.6.0)
  - Firebase/Messaging (9.6.0):
    - Firebase/CoreOnly
    - FirebaseMessaging (~> 9.6.0)
  - Firebase/RemoteConfig (9.6.0):
    - Firebase/CoreOnly
    - FirebaseRemoteConfig (~> 9.6.0)
  - FirebaseABTesting (9.6.0):
    - FirebaseCore (~> 9.0)
  - FirebaseAnalytics (9.6.0):
    - FirebaseAnalytics/AdIdSupport (= 9.6.0)
    - FirebaseCore (~> 9.0)
    - FirebaseInstallations (~> 9.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/MethodSwizzler (~> 7.7)
    - GoogleUtilities/Network (~> 7.7)
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - FirebaseAnalytics/AdIdSupport (9.6.0):
    - FirebaseCore (~> 9.0)
    - FirebaseInstallations (~> 9.0)
    - GoogleAppMeasurement (= 9.6.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/MethodSwizzler (~> 7.7)
    - GoogleUtilities/Network (~> 7.7)
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - FirebaseAuth (9.6.0):
    - FirebaseCore (~> 9.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/Environment (~> 7.7)
    - GTMSessionFetcher/Core (< 3.0, >= 1.7)
  - FirebaseCore (9.6.0):
    - FirebaseCoreDiagnostics (~> 9.0)
    - FirebaseCoreInternal (~> 9.0)
    - GoogleUtilities/Environment (~> 7.7)
    - GoogleUtilities/Logger (~> 7.7)
  - FirebaseCoreDiagnostics (9.6.0):
    - GoogleDataTransport (< 10.0.0, >= 9.1.4)
    - GoogleUtilities/Environment (~> 7.7)
    - GoogleUtilities/Logger (~> 7.7)
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - FirebaseCoreInternal (9.6.0):
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
  - FirebaseCrashlytics (9.6.0):
    - FirebaseCore (~> 9.0)
    - FirebaseInstallations (~> 9.0)
    - GoogleDataTransport (< 10.0.0, >= 9.1.4)
    - GoogleUtilities/Environment (~> 7.7)
    - nanopb (< 2.30910.0, >= 2.30908.0)
    - PromisesObjC (~> 2.1)
  - FirebaseDatabase (9.6.0):
    - FirebaseCore (~> 9.0)
    - leveldb-library (~> 1.22)
  - FirebaseInstallations (9.6.0):
    - FirebaseCore (~> 9.0)
    - GoogleUtilities/Environment (~> 7.7)
    - GoogleUtilities/UserDefaults (~> 7.7)
    - PromisesObjC (~> 2.1)
  - FirebaseMessaging (9.6.0):
    - FirebaseCore (~> 9.0)
    - FirebaseInstallations (~> 9.0)
    - GoogleDataTransport (< 10.0.0, >= 9.1.4)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/Environment (~> 7.7)
    - GoogleUtilities/Reachability (~> 7.7)
    - GoogleUtilities/UserDefaults (~> 7.7)
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - FirebaseRemoteConfig (9.6.0):
    - FirebaseABTesting (~> 9.0)
    - FirebaseCore (~> 9.0)
    - FirebaseInstallations (~> 9.0)
    - GoogleUtilities/Environment (~> 7.7)
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
  - Google-Mobile-Ads-SDK (11.2.0):
    - GoogleUserMessagingPlatform (>= 1.1)
  - GoogleAppMeasurement (9.6.0):
    - GoogleAppMeasurement/AdIdSupport (= 9.6.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/MethodSwizzler (~> 7.7)
    - GoogleUtilities/Network (~> 7.7)
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - GoogleAppMeasurement/AdIdSupport (9.6.0):
    - GoogleAppMeasurement/WithoutAdIdSupport (= 9.6.0)
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/MethodSwizzler (~> 7.7)
    - GoogleUtilities/Network (~> 7.7)
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - GoogleAppMeasurement/WithoutAdIdSupport (9.6.0):
    - GoogleUtilities/AppDelegateSwizzler (~> 7.7)
    - GoogleUtilities/MethodSwizzler (~> 7.7)
    - GoogleUtilities/Network (~> 7.7)
    - "GoogleUtilities/NSData+zlib (~> 7.7)"
    - nanopb (< 2.30910.0, >= 2.30908.0)
  - GoogleDataTransport (9.4.1):
    - GoogleUtilities/Environment (~> 7.7)
    - nanopb (< 2.30911.0, >= 2.30908.0)
    - PromisesObjC (< 3.0, >= 1.2)
  - GoogleSignIn (6.0.2):
    - AppAuth (~> 1.4)
    - GTMAppAuth (~> 1.0)
    - GTMSessionFetcher/Core (~> 1.1)
  - GoogleUserMessagingPlatform (2.3.0)
  - GoogleUtilities/AppDelegateSwizzler (7.13.0):
    - GoogleUtilities/Environment
    - GoogleUtilities/Logger
    - GoogleUtilities/Network
    - GoogleUtilities/Privacy
  - GoogleUtilities/Environment (7.13.0):
    - GoogleUtilities/Privacy
    - PromisesObjC (< 3.0, >= 1.2)
  - GoogleUtilities/Logger (7.13.0):
    - GoogleUtilities/Environment
    - GoogleUtilities/Privacy
  - GoogleUtilities/MethodSwizzler (7.13.0):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GoogleUtilities/Network (7.13.0):
    - GoogleUtilities/Logger
    - "GoogleUtilities/NSData+zlib"
    - GoogleUtilities/Privacy
    - GoogleUtilities/Reachability
  - "GoogleUtilities/NSData+zlib (7.13.0)":
    - GoogleUtilities/Privacy
  - GoogleUtilities/Privacy (7.13.0)
  - GoogleUtilities/Reachability (7.13.0):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GoogleUtilities/UserDefaults (7.13.0):
    - GoogleUtilities/Logger
    - GoogleUtilities/Privacy
  - GTMAppAuth (1.3.1):
    - AppAuth/Core (~> 1.6)
    - GTMSessionFetcher/Core (< 3.0, >= 1.5)
  - GTMSessionFetcher/Core (1.7.2)
  - leveldb-library (1.22.4)
  - nanopb (2.30909.1):
    - nanopb/decode (= 2.30909.1)
    - nanopb/encode (= 2.30909.1)
  - nanopb/decode (2.30909.1)
  - nanopb/encode (2.30909.1)
  - PromisesObjC (2.4.0)

DEPENDENCIES:
  - Firebase/Analytics (= 9.6.0)
  - Firebase/Auth (= 9.6.0)
  - Firebase/Core (= 9.6.0)
  - Firebase/Crashlytics (= 9.6.0)
  - Firebase/Database (= 9.6.0)
  - Firebase/Messaging (= 9.6.0)
  - Firebase/RemoteConfig (= 9.6.0)
  - Google-Mobile-Ads-SDK (~> 11.2.0)
  - GoogleSignIn (~> 6.0.2)

SPEC REPOS:
  https://github.com/CocoaPods/Specs:
    - AppAuth
    - FirebaseCore
    - GoogleUtilities
    - GTMSessionFetcher
    - nanopb
    - PromisesObjC
  trunk:
    - AppAuth
    - Firebase
    - FirebaseABTesting
    - FirebaseAnalytics
    - FirebaseAuth
    - FirebaseCoreDiagnostics
    - FirebaseCoreInternal
    - FirebaseCrashlytics
    - FirebaseDatabase
    - FirebaseInstallations
    - FirebaseMessaging
    - FirebaseRemoteConfig
    - Google-Mobile-Ads-SDK
    - GoogleAppMeasurement
    - GoogleDataTransport
    - GoogleSignIn
    - GoogleUserMessagingPlatform
    - GoogleUtilities
    - GTMAppAuth
    - leveldb-library
    - nanopb

SPEC CHECKSUMS:
  AppAuth: a13994980c1ec792f7e2e665acd4d4aa6be43240
  Firebase: 5ae8b7cf8efce559a653aef0ad95bab3f427c351
  FirebaseABTesting: 61826730ce9eee8781ba99a2b3420e9bce148dc9
  FirebaseAnalytics: 89ad762c6c3852a685794174757e2c60a36b6a82
  FirebaseAuth: e4a5d3c36e778e41141b91cc861103a441d80bcc
  FirebaseCore: 2082fffcd855f95f883c0a1641133eb9bbe76d40
  FirebaseCoreDiagnostics: 99a495094b10a57eeb3ae8efa1665700ad0bdaa6
  FirebaseCoreInternal: bca76517fe1ed381e989f5e7d8abb0da8d85bed3
  FirebaseCrashlytics: 3210572ddb77801e5a0bd9d7bc890769f2066a0c
  FirebaseDatabase: 3de19e533a73d45e25917b46aafe1dd344ec8119
  FirebaseInstallations: 0a115432c4e223c5ab20b0dbbe4cbefa793a0e8e
  FirebaseMessaging: a4d7910e4af663c9cbfc1071c5bef34651690949
  FirebaseRemoteConfig: ee09d77a7d7c7e31da6a0d1cf956cd611c85609c
  Google-Mobile-Ads-SDK: 5a6d005a6cb5b5e8f4c7b69ca05cdea79c181139
  GoogleAppMeasurement: 6de2b1a69e4326eb82ee05d138f6a5cb7311bcb1
  GoogleDataTransport: 6c09b596d841063d76d4288cc2d2f42cc36e1e2a
  GoogleSignIn: fd381840dbe7c1137aa6dc30849a5c3e070c034a
  GoogleUserMessagingPlatform: b1ad7bb1ee3ce64749d4fec24f667b36e45c396c
  GoogleUtilities: d053d902a8edaa9904e1bd00c37535385b8ed152
  GTMAppAuth: 0ff230db599948a9ad7470ca667337803b3fc4dd
  GTMSessionFetcher: 5595ec75acf5be50814f81e9189490412bad82ba
  leveldb-library: 06a69cc7582d64b29424a63e085e683cc188230a
  nanopb: d4d75c12cd1316f4a64e3c6963f879ecd4b5e0d5
  PromisesObjC: f5707f49cb48b9636751c5b2e7d227e43fba9f47

PODFILE CHECKSUM: 7cd7d58be0a7d5afaacef6127bf1c9454ea87e70

COCOAPODS: 1.15.2

</details>

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[paulinon]

Hi @beboldlab-lhj,

It's possible the cause of this behavior lies within building the Xcode project since you mentioned that the .xcworkspace file isn't created the first time. Updating Cocoapods usually resolves that issue.

Could you provide the generated Podfile so we could verify that the needed pods are included in the generated Xcode project?

[beboldlab-lhj]

thanks @paulinon
Fortunately, we discovered yesterday that the problem was elsewhere and fixed it.

#621

I found that it was the same issue and solved it.

The reason is that at first I discovered that I had to downgrade the podfile version because xcworkspace was not created, so I downgraded the version to 9.6.0, so the version did not match.

[paulinon]

Glad to hear that you resolved this issue, @beboldlab-lhj. That said, I'll be closing this ticket for now.