# \#build **URL:** https://forums.unrealengine.com/tag/build/498.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Building for Windows on Linux](https://forums.unrealengine.com/t/building-for-windows-on-linux/358294)
**Author:** [@anonymous\_user\_f3fb80e6](https://forums.unrealengine.com/u/anonymous_user_f3fb80e6)\ **Replies:** 23\ **Last updated:** [October 15, 2026, 5:35pm UTC](https://forums.unrealengine.com/t/building-for-windows-on-linux/358294 "2026-10-15T17:35:00Z")
We have a Continuous Integration server (TeamCity) running on Linux. Now I want to use that server to auto-build our UE4 projects as well. Is there an easy way to compile a UE4 project for Windows on Linux? --- ## [UI doesn't scale correctly when packaged](https://forums.unrealengine.com/t/ui-doesnt-scale-correctly-when-packaged/2810836)
**Author:** [@KMzuru](https://forums.unrealengine.com/u/KMzuru)\ **Replies:** 1\ **Last updated:** [September 18, 2026, 9:23am UTC](https://forums.unrealengine.com/t/ui-doesnt-scale-correctly-when-packaged/2810836 "2026-09-18T09:23:21Z")
I’m not sure what stupid setting I may have accidentally clicked on but for some reason on a packaged shipping build the UI doesn’t scale at all. It appears fine when at 1080p but not otherwise. I think this only starte… --- ## [\[UE6 Main\] LumenRef stopped working in recent build](https://forums.unrealengine.com/t/ue6-main-lumenref-stopped-working-in-recent-build/2746957)
**Author:** [@eco\_bach2](https://forums.unrealengine.com/u/eco_bach2)\ **Replies:** 1\ **Last updated:** [September 4, 2026, 8:26pm UTC](https://forums.unrealengine.com/t/ue6-main-lumenref-stopped-working-in-recent-build/2746957 "2026-09-04T20:26:15Z")
Summary UE6 Main — Built from source on 08-27 What Type of Bug are you experiencing? Rendering (Graphics / Niagara) Steps to Reproduce r.LumenRef.Supported=True (in DefaultEngine.ini) On launching a new project r.Lu… --- ## [Enhanced Input actions not showing in widget after packaging (works in editor)](https://forums.unrealengine.com/t/enhanced-input-actions-not-showing-in-widget-after-packaging-works-in-editor/2611420)
**Author:** [@DARTVAUDER0057](https://forums.unrealengine.com/u/DARTVAUDER0057)\ **Replies:** 2\ **Last updated:** [September 4, 2026, 2:33pm UTC](https://forums.unrealengine.com/t/enhanced-input-actions-not-showing-in-widget-after-packaging-works-in-editor/2611420 "2026-09-04T14:33:21Z")
Good morning everyone. I really need your help with an issue I’ve run into. I followed a tutorial (https://youtu.be/PuI7MzvSECc?si=xtuwJ9vwpXvVzsM3) to implement key remapping functionality using Enhanced Input, and eve… --- ## [In ue5.7 I don't have the Platforms button](https://forums.unrealengine.com/t/in-ue5-7-i-dont-have-the-platforms-button/2670096)
**Author:** [@K.O.D12](https://forums.unrealengine.com/u/K.O.D12)\ **Replies:** 6\ **Last updated:** [July 13, 2026, 4:31pm UTC](https://forums.unrealengine.com/t/in-ue5-7-i-dont-have-the-platforms-button/2670096 "2026-07-13T16:31:56Z")
I just want to package the game. I did reset the layout to default, verify installation, restart editor, restart pc. Any help will be appreciated :wink: --- ## [UE5 source build packaging takes 2 hours vs 2 minutes (launcher) ](https://forums.unrealengine.com/t/ue5-source-build-packaging-takes-2-hours-vs-2-minutes-launcher/2719900)
**Author:** [@anchorHUN](https://forums.unrealengine.com/u/anchorHUN)\ **Replies:** 2\ **Last updated:** [July 5, 2026, 1:23pm UTC](https://forums.unrealengine.com/t/ue5-source-build-packaging-takes-2-hours-vs-2-minutes-launcher/2719900 "2026-07-05T13:23:04Z")
I’ve built UE 5.7 and 5.8 from source, and I’m seeing a huge difference in packaging times compared to the Epic launcher version. Using the launcher build, packaging the exact same project takes around 2 minutes. With … --- ## [iOS distribution packaging on UE 5.8.0 (modern Xcode) fails to copy the staged cooked data into the .app during the xcodebuild archive step](https://forums.unrealengine.com/t/ios-distribution-packaging-on-ue-5-8-0-modern-xcode-fails-to-copy-the-staged-cooked-data-into-the-app-during-the-xcodebuild-archive-step/2732331)
**Author:** [@Ted.steen](https://forums.unrealengine.com/u/Ted.steen)\ **Replies:** 0\ **Last updated:** [June 29, 2026, 3:47pm UTC](https://forums.unrealengine.com/t/ios-distribution-packaging-on-ue-5-8-0-modern-xcode-fails-to-copy-the-staged-cooked-data-into-the-app-during-the-xcodebuild-archive-step/2732331 "2026-06-29T15:47:28Z")
Summary This was confirmed by the community to be a bug in Unreal Engine 5.8 A summary would look something like this: iOS distribution packaging on UE 5.8.0 (modern Xcode) fails to copy the staged cooked data into th… --- ## [Unreal Horde saving Manifest.xml to the wrong path in the Agent ](https://forums.unrealengine.com/t/unreal-horde-saving-manifest-xml-to-the-wrong-path-in-the-agent/2729637)
**Author:** [@ac4champ](https://forums.unrealengine.com/u/ac4champ)\ **Replies:** 0\ **Last updated:** [June 18, 2026, 2:56pm UTC](https://forums.unrealengine.com/t/unreal-horde-saving-manifest-xml-to-the-wrong-path-in-the-agent/2729637 "2026-06-18T14:56:08Z")
Hello, I have an Unreal Horde project to build the editor and a game in unreal engine. The stream with the source code has the following structure: UE4/Engine/… UE4/Games/MyGame/… In the project.json, the engine path… --- ## [UE 5.6 + PICO OpenXR: "xmlns:android is a duplicate attribute name" — full breakdown and working fix ](https://forums.unrealengine.com/t/ue-5-6-pico-openxr-xmlns-android-is-a-duplicate-attribute-name-full-breakdown-and-working-fix/2729313)
**Author:** [@Boss26stv01](https://forums.unrealengine.com/u/Boss26stv01)\ **Replies:** 0\ **Last updated:** [June 17, 2026, 2:19pm UTC](https://forums.unrealengine.com/t/ue-5-6-pico-openxr-xmlns-android-is-a-duplicate-attribute-name-full-breakdown-and-working-fix/2729313 "2026-06-17T14:19:21Z")
I just spent two weeks fighting a UE 5.6 bug that has no solution anywhere on the internet. Here’s everything. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ \[FIX\] UE 5.6 + PICO OpenXR: “xmlns:android is a duplicate attribut… --- ## [Editor crashes after finishing any kind of build ](https://forums.unrealengine.com/t/editor-crashes-after-finishing-any-kind-of-build/2727772)
**Author:** [@Bacon\_Mann](https://forums.unrealengine.com/u/Bacon_Mann)\ **Replies:** 1\ **Last updated:** [June 10, 2026, 6:06pm UTC](https://forums.unrealengine.com/t/editor-crashes-after-finishing-any-kind-of-build/2727772 "2026-06-10T18:06:12Z")
I’ve tried to build things like lighting and geometry and even check for errors, it finishes its process then crashes. I don’t really have a clear indication on what’s going wrong since I don’t use unreal engine as much … --- ## [Installed Build not outputting anything to outdir (5.8)](https://forums.unrealengine.com/t/installed-build-not-outputting-anything-to-outdir-5-8/2721882)
**Author:** [@Starcrater21](https://forums.unrealengine.com/u/Starcrater21)\ **Replies:** 4\ **Last updated:** [May 15, 2026, 7:57pm UTC](https://forums.unrealengine.com/t/installed-build-not-outputting-anything-to-outdir-5-8/2721882 "2026-05-15T19:57:23Z")
As per the title, whenever I try to create a installed build for UE5.8 from source, no binaries are output to the specified outdir, only PDB files. Were there any changes to 5.8 that would cause this? Not really sure wh… --- ## [Project Launcher build to Android: AutomationTool exiting with ExitCode=1 (Error\_Unknown)](https://forums.unrealengine.com/t/project-launcher-build-to-android-automationtool-exiting-with-exitcode-1-error-unknown/2721799)
**Author:** [@XxpiingyxX](https://forums.unrealengine.com/u/XxpiingyxX)\ **Replies:** 0\ **Last updated:** [May 13, 2026, 9:25am UTC](https://forums.unrealengine.com/t/project-launcher-build-to-android-automationtool-exiting-with-exitcode-1-error-unknown/2721799 "2026-05-13T09:25:10Z")
▶ TL;DR Hello! I am trying to make a build to a PICO headset using the Project Launcher tool. However, I keep running into the following error: AutomationTool exiting with ExitCode=1 (Error\_Unknown) BUILD FAILED My… --- ## [Build Error UE 5.7](https://forums.unrealengine.com/t/build-error-ue-5-7/2720063)
**Author:** [@Alekre23](https://forums.unrealengine.com/u/Alekre23)\ **Replies:** 3\ **Last updated:** [May 5, 2026, 4:24pm UTC](https://forums.unrealengine.com/t/build-error-ue-5-7/2720063 "2026-05-05T16:24:22Z")
I haven’t been able to build an assembly for several days. Do you have any ideas? Logs: Log started at 05/05/2026 15:24:52 (2026-05-05T10:24:52Z) Resolved project argument D:\\UE\_Projects\\SCP\\SCP.uproject to D:\\UE\_Proje… --- ## [unable to place builds or edit my creative map ](https://forums.unrealengine.com/t/unable-to-place-builds-or-edit-my-creative-map/2719293)
**Author:** [@Eomzo\_Dominion](https://forums.unrealengine.com/u/Eomzo_Dominion)\ **Replies:** 1\ **Last updated:** [April 30, 2026, 11:10pm UTC](https://forums.unrealengine.com/t/unable-to-place-builds-or-edit-my-creative-map/2719293 "2026-04-30T23:10:36Z")
Summary i have had to rebuild my creative map 4 times because every single time i leave the session and re join i am unable to build or edit on my session and i have no clue what my issue is or how to fix it Please sele… --- ## [Move around in 360 Images by hotspots](https://forums.unrealengine.com/t/move-around-in-360-images-by-hotspots/518639)
**Author:** [@LeonServais](https://forums.unrealengine.com/u/LeonServais)\ **Replies:** 5\ **Last updated:** [April 17, 2026, 2:02pm UTC](https://forums.unrealengine.com/t/move-around-in-360-images-by-hotspots/518639 "2026-04-17T14:02:55Z")
Hello, I was wondering if someone created somehow like this. For example you have a house and want to jump around from 360 image to 360 image just like a VR visit what you can see on a lot of Websites. Any information… --- ## [Generating project files from source on 5.7 with Visual Studio 2026](https://forums.unrealengine.com/t/generating-project-files-from-source-on-5-7-with-visual-studio-2026/2674941)
**Author:** [@RVillani](https://forums.unrealengine.com/u/RVillani)\ **Replies:** 9\ **Last updated:** [April 13, 2026, 11:41pm UTC](https://forums.unrealengine.com/t/generating-project-files-from-source-on-5-7-with-visual-studio-2026/2674941 "2026-04-13T23:41:27Z")
Issue If, like me, you uninstalled VS 2022 after installing VS 2026, you’ll get the following error when generating project files or loading the Default.uprojectdirs file on Rider to launch the UE5 source project: Visua… --- ## [HLODs Different in Build?](https://forums.unrealengine.com/t/hlods-different-in-build/2713946)
**Author:** [@DanielOS96](https://forums.unrealengine.com/u/DanielOS96)\ **Replies:** 0\ **Last updated:** [April 10, 2026, 8:16am UTC](https://forums.unrealengine.com/t/hlods-different-in-build/2713946 "2026-04-10T08:16:15Z")
Anyone know what might be causing my HLODs to look bad in build but not in editor running? In the build if I go close to the object so it loads in it looks fine even if I then go back to a distance it will show the prope… --- ## [UAT Builds Fail on Windows Server 2022 Core: OnlineSubsystemUtils Plugin Error ](https://forums.unrealengine.com/t/uat-builds-fail-on-windows-server-2022-core-onlinesubsystemutils-plugin-error/2713366)
**Author:** [@dylan.medeiros](https://forums.unrealengine.com/u/dylan.medeiros)\ **Replies:** 0\ **Last updated:** [April 9, 2026, 4:42pm UTC](https://forums.unrealengine.com/t/uat-builds-fail-on-windows-server-2022-core-onlinesubsystemutils-plugin-error/2713366 "2026-04-09T16:42:26Z")
I have been working on setting up a CI/CD pipeline on a VM that runs Windows Server 2022 Core that uses UE 5.7 (cloned and compiled from the GitHub source, not installed from the Epic Games Launcher since this a headless… --- ## [Steam SDK On Mac OS Shipping build does not work.](https://forums.unrealengine.com/t/steam-sdk-on-mac-os-shipping-build-does-not-work/2269501)
**Author:** [@Turkenberg](https://forums.unrealengine.com/u/Turkenberg)\ **Replies:** 6\ **Last updated:** [April 8, 2026, 8:14pm UTC](https://forums.unrealengine.com/t/steam-sdk-on-mac-os-shipping-build-does-not-work/2269501 "2026-04-08T20:14:52Z")
Hi there, I’ve been trying for three days to Build my app for MacOS with Steam Integration using base Steamworks SDK, Engine Binary (not compiled engine) UE 5.3.2 ; steam sdk 1.53 ; MacOS 15 ; Xcode 15.4 It works flaw… --- ## [How to properly setup Unreal Engine 5.7 to export for android ?](https://forums.unrealengine.com/t/how-to-properly-setup-unreal-engine-5-7-to-export-for-android/2683128)
**Author:** [@Sumant\_Bag\_1992](https://forums.unrealengine.com/u/Sumant_Bag_1992)\ **Replies:** 2\ **Last updated:** [March 29, 2026, 11:23pm UTC](https://forums.unrealengine.com/t/how-to-properly-setup-unreal-engine-5-7-to-export-for-android/2683128 "2026-03-29T23:23:15Z")
I looked into the online documentation regarding this, but the data there is of an outdated version and not of Unreal Engine 5.7: https://dev.epicgames.com/documentation/en-us/unreal-engine/setting-up-unreal-engine-proje… --- ## [How to precompile shaders for other devices?](https://forums.unrealengine.com/t/how-to-precompile-shaders-for-other-devices/2703780)
**Author:** [@TheWorm141](https://forums.unrealengine.com/u/TheWorm141)\ **Replies:** 1\ **Last updated:** [March 5, 2026, 6:14am UTC](https://forums.unrealengine.com/t/how-to-precompile-shaders-for-other-devices/2703780 "2026-03-05T06:14:49Z")
I have a bunch of .usf compute shaders. On lower-end devices the shaders take MINUTES to compile at startup, even half an hour sometimes. Some users even crash multiple times before they can finally compile which is unac… --- ## [Can't pack for IOS 26.2 on Unreal Engine 5.7](https://forums.unrealengine.com/t/cant-pack-for-ios-26-2-on-unreal-engine-5-7/2700231)
**Author:** [@Hugo\_Che](https://forums.unrealengine.com/u/Hugo_Che)\ **Replies:** 7\ **Last updated:** [March 3, 2026, 11:16pm UTC](https://forums.unrealengine.com/t/cant-pack-for-ios-26-2-on-unreal-engine-5-7/2700231 "2026-03-03T23:16:48Z")
Hello! Since Unreal Engine 5.7, after updating XCode and the IOS SDK, I can’t pack for IOS at all anymore. Our team is using a Mac mini M4 (ARM64). I was able to launch applications for IOS 18 in UE5.6. The project D… --- ## [Building Unreal Engine Editor from source fails](https://forums.unrealengine.com/t/building-unreal-engine-editor-from-source-fails/2695059)
**Author:** [@shue\_it](https://forums.unrealengine.com/u/shue_it)\ **Replies:** 1\ **Last updated:** [March 3, 2026, 3:21pm UTC](https://forums.unrealengine.com/t/building-unreal-engine-editor-from-source-fails/2695059 "2026-03-03T15:21:33Z")
Hello, I’m trying to build Unreal Engine from source (based on 5.7.1-release tag). I followed the README instructions and : executed Setup.bat script executed GenerateProjectFiles.bat script Open the project from UE5… --- ## [Horde system user authentication (ServiceAccounts)](https://forums.unrealengine.com/t/horde-system-user-authentication-serviceaccounts/2676773)
**Author:** [@Jacobo-rpg](https://forums.unrealengine.com/u/Jacobo-rpg)\ **Replies:** 2\ **Last updated:** [February 27, 2026, 1:23pm UTC](https://forums.unrealengine.com/t/horde-system-user-authentication-serviceaccounts/2676773 "2026-02-27T13:23:43Z")
We are using Horde for distributed compilation for our developers and have configured Horde with Okta SSO. We would like to also allow our current CI system, which runs on TeamCity, to utilize Horde agents for compilati… --- ## [Package Build Displays Black Materials](https://forums.unrealengine.com/t/package-build-displays-black-materials/2696338)
**Author:** [@DarkDreamStudio](https://forums.unrealengine.com/u/DarkDreamStudio)\ **Replies:** 9\ **Last updated:** [February 13, 2026, 7:43pm UTC](https://forums.unrealengine.com/t/package-build-displays-black-materials/2696338 "2026-02-13T19:43:45Z")
Did anyone tried to package a project in 5.7.2? I’m having a weird issue where the materials display perfectly playing through editor but display black when packaging. I tried to package a default third person project … --- ## [Sharing my script: Signed + notarized macOS Unreal 5.x build and zip with Steam support](https://forums.unrealengine.com/t/sharing-my-script-signed-notarized-macos-unreal-5-x-build-and-zip-with-steam-support/2696745)
**Author:** [@Alfreddiculous](https://forums.unrealengine.com/u/Alfreddiculous)\ **Replies:** 0\ **Last updated:** [February 3, 2026, 4:28am UTC](https://forums.unrealengine.com/t/sharing-my-script-signed-notarized-macos-unreal-5-x-build-and-zip-with-steam-support/2696745 "2026-02-03T04:28:18Z")
Hey folks, After way too much trial, error, and head-scratching, I finally got a reliable macOS build pipeline working for Unreal projects that covers: Build / Cook / Package via UAT Xcode archive + export Deve… --- ## [GShaderHashCache crash on startup in cooked development build, Windows x64](https://forums.unrealengine.com/t/gshaderhashcache-crash-on-startup-in-cooked-development-build-windows-x64/2695847)
**Author:** [@mrpenbrook](https://forums.unrealengine.com/u/mrpenbrook)\ **Replies:** 0\ **Last updated:** [January 29, 2026, 7:52pm UTC](https://forums.unrealengine.com/t/gshaderhashcache-crash-on-startup-in-cooked-development-build-windows-x64/2695847 "2026-01-29T19:52:47Z")
Using 5.7, trying to create a standalone, cooked development build of my game prototype for Windows, x64, and I get this crash on startup: \[2026.01.29-17.46.16:154\]\[ 0\]LogWindows: Error: === Critical error: === \[2026.… --- ## [UE5.7.1 ProjectLauncher Packaging Error when build .pak file](https://forums.unrealengine.com/t/ue5-7-1-projectlauncher-packaging-error-when-build-pak-file/2693661)
**Author:** [@DaVinci\_13](https://forums.unrealengine.com/u/DaVinci_13)\ **Replies:** 5\ **Last updated:** [January 28, 2026, 2:36am UTC](https://forums.unrealengine.com/t/ue5-7-1-projectlauncher-packaging-error-when-build-pak-file/2693661 "2026-01-28T02:36:23Z")
Hi, I’m trying to build .pak file by UE5.7.1 Project Launcher. But I get some error when packaging. Both mac and windows. There is my package config. And there is the error log: \*\*\*\*\*\*\*\*\*\* COOK COMMAND COMPL… --- ## [Unable to start UE5.3 package on Quest3](https://forums.unrealengine.com/t/unable-to-start-ue5-3-package-on-quest3/1521513)
**Author:** [@tarotarounchi](https://forums.unrealengine.com/u/tarotarounchi)\ **Replies:** 22\ **Last updated:** [January 24, 2026, 10:27pm UTC](https://forums.unrealengine.com/t/unable-to-start-ue5-3-package-on-quest3/1521513 "2026-01-24T22:27:42Z")
Hello. I was able to build the MR project created with UE5.3 and install the package to Quest3 through MQDH, but the package crashes immediately after starting. Even quick launch crashes. The following articles were r… --- ## [Building HLODs taking forever.](https://forums.unrealengine.com/t/building-hlods-taking-forever/2694490)
**Author:** [@DanielOS96](https://forums.unrealengine.com/u/DanielOS96)\ **Replies:** 2\ **Last updated:** [January 24, 2026, 6:27pm UTC](https://forums.unrealengine.com/t/building-hlods-taking-forever/2694490 "2026-01-24T18:27:59Z")
Hi, Not sure what is going here but building my HLODs used to only take about 60 seconds now I sat for over 30 mins and they still won’t build. I tried going in and duplicating my level and building that, same issue. It… [Next page](https://forums.unrealengine.com/tag/build/498.md?match_all_tags=true&page=1&tags%5B%5D=build)