title: Unable to find FirebaseCppApp
body: <p>We integrated Firebase into one of our projects. The project runs well and works perfectly in the editor, but when ran on an Android device I get the following output on logcat:</p>
  
  <pre><code>01-04 11:18:04.789 12651-12651/? I/FirebaseInitProvider: FirebaseApp initialization unsuccessful
  01-04 11:18:20.897 12823-13015/? W/Ads: Invoke Firebase method getInstance error.
      The Google Mobile Ads SDK will not integrate with Firebase. Admob/Firebase integration requires the latest Firebase SDK jar, but Firebase SDK is either missing or out of date
  01-04 11:18:21.113 12823-12878/? E/Unity: Unable to find FirebaseCppApp-5.4.3
  01-04 11:18:21.233 12823-12878/? E/Unity: DllNotFoundException: FirebaseCppApp-5.4.3
          at (wrapper managed-to-native) Firebase.AppUtilPINVOKE/SWIGExceptionHelper:SWIGRegisterExceptionCallbacks_AppUtil (Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate,Firebase.AppUtilPINVOKE/SWIGExceptionHelper/ExceptionDelegate)
        at Firebase.AppUtilPINVOKE+SWIGExceptionHelper..cctor () [0x00000] in &lt;filename unknown&gt;:0 
      Rethrow as TypeInitializationException: An exception was thrown by the type initialize
  </code></pre>
  
  <p>It seems some DLL cannot be found. I've ran the <strong>Assets > Play Services Resolver > Android Resolver > Force Resolve</strong> in the Unity Editor, and resolving outputs success. We've also tried re-importing the Firebase package, alas, to no avail.</p>