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There is no deobfuscation file associated with this App Bundle. If you use obfuscated code (R8/proguard), uploading a deobfuscation file will make crashes and ANRs easier to analyze and debug. Using R8/proguard can help reduce app size

Confirm Expert: rcschroeder replied at 2026-06-21 23:17:55    

The infamous "no deobfuscation file" warning from Google Play!

Don't worry, I'm here to help you resolve this issue.

**What is deobfuscation?**

Deobfuscation is a process that helps developers understand the code used in their app. When an app uses Proguard (a tool that minimizes class and resource files) or R8 (a newer obfuscation tool), the code becomes difficult to read, making it harder for Google Play to analyze crashes and ANRs (Application Not Responding). The warning is prompting you to include a deobfuscation file in your App Bundle.

**Why do I need a deobfuscation file?**

Including a deobfuscation file makes it easier for Google Play to debug and analyze crashes. When an app uses obfuscated code, the deobfuscation process helps identify which classes or methods are causing the issue. This enables you to fix problems more efficiently.

**How to solve the warning:**

To resolve this warning, follow these steps:

1. **Check your `build.gradle` file**: Look for the Proguard configuration in your `build.gradle` file. If you're using Android Gradle Plugin (AGP) 4.x or later, you might have a `proguardFiles` block. Update it to include a deobfuscation file:
```groovy
android {
// ...
buildTypes {
release {
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-project.txt'
}
}
}
```
If you're using AGP 3.x or earlier, add a `proguardFile` block:
```groovy
android {
// ...
buildTypes {
release {
proguardFiles getDefaultProguardFile('proguard-android.txt')
}
}
}
```
2. **Create a deobfuscation file**: You need to create a `.txt` file that contains the deobfuscation configuration for your app. This file should be in the root of your project, and its name should match the package name of your app (without the `.apk` extension). For example, if your app's package name is `com.example.myapp`, you'll need to create a file named `proguard-project.txt`.
```plain
# Automatically generated by ProGuard, do not edit.
-dontwarn android.support.v4.appcompat.*,
dontwarn android.support.v4.view.*,
```
3. **Apply the deobfuscation file**: Update your `build.gradle` file to include the deobfuscation file:
```groovy
android {
// ...
buildTypes {
release {
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-project.txt'
}
}
}
```
4. **Sync and rebuild your project**: Save your changes and sync your project. Rebuild the app to ensure that the deobfuscation file is properly applied.

**Additional tips:**

* If you're using a third-party library, check if it provides its own Proguard configuration. You might need to adjust or disable any conflicting rules.
* Keep in mind that obfuscating your code can make debugging and troubleshooting more difficult.
* Make sure to test your app with the deobfuscation file applied to ensure it doesn't cause issues.

By following these steps, you should be able to resolve the "no deobfuscation file" warning from Google Play.