# UE5.2.1 Package project + Project Launcher not working 

**URL:** <https://forums.unrealengine.com/t/ue5-2-1-package-project-project-launcher-not-working/2711575>\
**Category:** Platform & Builds\
**Tags:** unreal-engine, bug-report, editor, packaging-projects\
**Created:** [April 5, 2026, 2:57pm UTC](https://forums.unrealengine.com/t/ue5-2-1-package-project-project-launcher-not-working/2711575 "2026-04-05T14:57:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![gravity\_moxy](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@gravity\_moxy](https://forums.unrealengine.com/u/gravity_moxy)\
**Post date:** [April 5, 2026, 2:57pm UTC](https://forums.unrealengine.com/t/ue5-2-1-package-project-project-launcher-not-working/2711575/1 "2026-04-05T14:57:50Z")

</div>

Hi, i am having troubles packaging the game for Android. We all know that “ package project “ always packages a dev build even if all the settings are made for shipping so we were told to use the project launcher. So i made all the correct settings for the project launcher and i have the “ package inside APK “ enabled and it gives me my 200MB APK once every 30 packages i make. Other 29 tried it just gives me the .obb file and some ini files and a .pak file + a 40MB APK file that installs on my phone but returns an error “ failed to open descriptor file “. I do not understand what is happening here, i will legit use the project launcher with the exact same settings two times in a row and get a different output. How is that even possible? I also tried deleting the build, saved, intermediate and the binaries map before packaging again and it wont help. I also tried making numerous launch profiles, changing package output directory, archiving, changing all kinds of settings in the defaultengine.ini file, in the project settings, in the project launcher settings.. i tried all the combinations possible and i keep on getting a 40MB apk file that wont work + an obb and a pak file alongside some ini files. All i want is that it gives me a full game in one single APK, thats it. Clicking on just that bugged “ package project “ gives me the 200MB APK everytime but its always in DEV mode because of the 5.2.1 BUG that was never fixed. And i cant use that, but i also cant get it to spit out the 200MB APK with the project launcher. Please help me if you know whats going on, ive spent 6 years making a game and now i cannot package it normally to test. PLEASE!

Thanks in advance!