App Bundle Android


I am trying to package my game as bundle for google play ( I have successfully Packaged my game without app bundle)
I am getting an error that I cannot find anywhere on internet to solve this issue.
Here it is:

[SPOILER]UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): FAILURE: Build failed with an exception.
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): * What went wrong:
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): Execution failed for task ‘:app:signReleaseBundle’.
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): > A failure occurred while executing$ActionFacade
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): > Failed to sign using signer “ALIAS”
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): 64 actionable tasks: 64 executed
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): * Try:
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): * Get more help at
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): BUILD FAILED in 1m 29s
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): ERROR: cmd.exe failed with args /c “D:\Ue4_Projects\LifeofLight\Intermediate\Android\gradle\rungradle.bat” :app:bundleRelease
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): (see C:\Users\samue\AppData\Roaming\Unreal Engine\AutomationTool\Logs\D+Games+UE_4.26\Log.txt for full exception trace)
UATHelper: Packaging (Android (Multi:ASTC,DXT,ETC2)): AutomationTool exiting with ExitCode=1 (Error_Unknown)[/SPOILER]

So as said above, my game packages and signs fine when I package WITHOUT app bundle, but when app bundle is selected it seems to fail when signing it.

Thank you very much,

Polar Games Studio.


I have fixed this issue.


Android studio, change gradle version to latest, update android studio to latest also.

Generate new signing key 2048 lengh, i had to contact support google play for them to change my app signing key also.

Hello man
If u package find before that and thing change when you change some thing, u may can try re-pack by,delete:
Binary/ Android
Intermediate/ Android

THen re-pack again, it will work :3

I made it work by using GOOGLE PAD PLUGIN, simply adding data assets in each folder, activating plugin, selecting all options in android app bundle and it works great now! I can upload my AAB which is 300MB.

Thanks for the help!

​​​​​​Hi sampuing12, did you set 0 to all chunck id in each data assets ?

Hi. What information did you changed inside Data Asset? I’m having problem with “Failed to open descriptor file …uproject”. Can you share screenshots?

I have the same problem