While building the release APK (using the command ./gradlew bundleRelease), it may gives you the error Execution failed for task ':app:mergeReleaseResources' [folder path] Error: Duplicate resources To solve this delete the following folders: android\app\src\main\res\drawable-hdpi android\app\src\main\res\drawable-mdpi android\app\src\main\res\drawable-xhdpi android\app\src\main\res\drawable-xxhdpi android\app\src\main\res\drawable-xxxhdpi android\app\src\main\res\raw