Question 267301 in Firebase Question posted in
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"The type initializer for 'Firebase.FirebaseApp' threw an exception" on Android in unity 2022.3.11

I am building an app using unity2022.3.11.
The error
"The type initializer for ‘Firebase.FirebaseApp’ threw an exception"
is occurring in this code when launching on an Android device after build.

await FirebaseApp.CheckAndFixDependenciesAsync();
  1. What is the cause of this error?
  2. Is this due to build or is there something I should add from firebase unitypackage?
  3. If it cause of build, how do I configure gradle?

Resolve was done with the Android resolver in the External dependency manager.

Placed them in Assets/Plugins/Android.

baseProjectTemplate.gradle
gradleTemplate.properties
mainTemplate.gradle
settingTemplate.gradle

Filled in gradleTemplate.properties.

android.useAndroidX=true
android.enableJetifier=true
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2

Answers


  1. 0

    As I understand this, this functions should not be awaited as shown below
    (This is an example of a FirebaseInit script I wrote)

    void Start()
{
    FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task =>
    {

        var dependencyStatus = task.Result;
        if (dependencyStatus == DependencyStatus.Available)
        {
            FirebaseAnalytics.SetAnalyticsCollectionEnabled(true);
            FirebaseAnalytics.LogEvent(FirebaseAnalytics.EventLogin);
            Debug.Log("The Firebase Is INIT and is tracking");

            FetchDataAsync();
        }
        else
        {
            Debug.LogError(string.Format(
              "Could not resolve all Firebase dependencies: {0}", dependencyStatus));
        }

    I hope this will help you with resolving your error

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  2. 0

    As mentioned by TheCoderEll, typically you should not await CheckAndFixDependenciesAsync.

    The easiest/ most straightforward way is to use ContinueWithOnMainThread as shown in Firebase’s Level up With Firebase:

    
using Firebase.Extensions;

//...

    private void InitializeFirebaseAndStartGame()
    {
      Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWithOnMainThread(
        previousTask => 
        {
          var dependencyStatus = previousTask.Result;
          if (dependencyStatus == Firebase.DependencyStatus.Available) {
            // Create and hold a reference to your FirebaseApp,
            app = Firebase.FirebaseApp.DefaultInstance;
            // Begin/perform all downstream/Firebase dependent functionality from here
          } else {
            UnityEngine.Debug.LogError(
              $"Could not resolve all Firebase dependencies: {dependencyStatus}n" +
              "Firebase Unity SDK is not safe to use here");
          }
        });
    }

    As for your build errors consult the following: Debugging the Game Build, Install and Run Process and EDM4U Usage Troubleshooting Guide

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