Troubleshooting: How to Fix 'Local Module Descriptor Class for com.google.firebase.auth Not Found' Error with w/dynamitemodule

If you're a developer working with Firebase and you see the error message "Local module descriptor class for com.google.firebase.auth not found" when running your code, don't panic. This error message can be frustrating, but the solution is relatively straightforward. In this guide, we'll walk you through the steps to fix this error using w/dynamitemodule.

What Is w/dynamitemodule?

w/dynamitemodule is a lightweight library that enables dynamic module loading on Android devices. This library is particularly useful for developers who want to reduce the initial app size and download time by loading only the necessary modules at runtime. In addition, w/dynamitemodule can help with versioning, allowing you to update your app modules independently of the main app.

Step-by-Step Solution

To fix the "Local module descriptor class for com.google.firebase.auth not found" error, follow these steps:

Add the following dependency to your app-level build.gradle file:

dependencies {
 implementation 'com.google.android.gms:play-services-dynamite:17.1.0'
}

In your code, replace the Firebase Authentication dependency with the following code:

FirebaseAuth auth = FirebaseAuth.getInstance(FirebaseApp.getInstance());

If you're using ProGuard, add the following rules to your proguard-rules.pro file:

-keep class com.google.firebase.** { *; }
-keep class com.google.android.gms.** { *; }
  1. Clean and rebuild your project.

That's it! Your app should now be able to find the local module descriptor class for com.google.firebase.auth.

FAQ

Q1: What causes the "Local module descriptor class for com.google.firebase.auth not found" error?

A1: This error occurs when your app can't find the local module descriptor class for com.google.firebase.auth. This can happen when you're using an older version of the Firebase Authentication library that isn't compatible with the Google Play Services Dynamite library.

Q2: What is the Google Play Services Dynamite library?

A2: The Google Play Services Dynamite library is a lightweight library that enables dynamic module loading on Android devices. This library is particularly useful for reducing the initial app size and download time by loading only the necessary modules at runtime.

Q3: How does w/dynamitemodule work?

A3: w/dynamitemodule is a lightweight library that enables dynamic module loading on Android devices. This library is particularly useful for developers who want to reduce the initial app size and download time by loading only the necessary modules at runtime.

Q4: Why should I use w/dynamitemodule?

A4: w/dynamitemodule can help reduce the initial app size and download time by loading only the necessary modules at runtime. In addition, w/dynamitemodule can help with versioning, allowing you to update your app modules independently of the main app.

Q5: What if the solution doesn't work for me?

A5: If the solution described in this guide doesn't work for you, make sure you're using the latest version of the Firebase Authentication library and the Google Play Services Dynamite library. If you're still having issues, check the Firebase documentation and forums for further assistance.

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