I want to generate the unsigned app-release.apk without the react-packager server.
I am running the following commands for that.
1- cd react-native-project-dir
2- react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/
After the following command I get the error in command prompt like these:
cd android && gradlew assemblerelease
app:processReleaseManifestessReleaseManifest
:app:processReleaseResources D:\ReactNativeProject\android\app\build\intermediates\res\merged\release\drawable-mdpi-v4\image_background_unique_2.jpg: error: Duplicate file. D:\ReactNativeProject\android\app\build\intermediates\res\merged\release\drawable-mdpi\image_background_unique_2.jpg: Original is here. The version qualifier may be implied. :app:processReleaseResources FAILED
FAILURE: Build failed with an exception.
- What went wrong: Execution failed for task ':app:processReleaseResources'. com.android.ide.common.process.ProcessException: Failed to execute aapt
And I am not able to generate the app-release.apk and not understanding why the image_background_unique_2.jpg file is getting added two times in different folders.
I was trying to generate a signed APK following the steps from https://facebook.github.io/react-native/docs/signed-apk-android.html to generate a signed apk.
I had the same issue. Showed error: Duplicate file for some of my images when I ran ./gradlew assembleRelease. assembleRelease seems to cause some problems with drawable- folders. I deleted all the drawable- folders from /android/app/src/main/res/. Then I ran ./gradlew assembleRelease again. Finaly, it generated a signed APK at /android/app/build/outputs/apk/.