# Can not publish iOS: Failed to prepare data **URL:** \ **Category:** Issues and Bug Reporting\ **Tags:** fortnite-creative, unreal-editor-for-fortnite, fixed, fortnite\ **Created:** [October 24, 2025, 8:56am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217 "2025-10-24T08:56:41Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![davidpkami](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/davidpkami/32/1040403_2.png) [@davidpkami](https://forums.unrealengine.com/u/davidpkami)\ **Post date:** [October 24, 2025, 8:56am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/1 "2025-10-24T08:56:41Z")
### Summary Can not publish iOS: Failed to prepare data ### Please select what you are reporting on: Creative ### What Type of Bug are you experiencing? Assets ### Steps to Reproduce Just try to publish ### Expected Result Publicated ### Observed Result Can not publish iOS: Failed to prepare data ### Platform(s) PC ### Upload an image ![imagen_2025-10-24_105556926.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/0/0/4008578e3232e991b54453f45ea5d8611dbfa46f.png) ---
**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\ **Post date:** [October 24, 2025, 12:58pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/3 "2025-10-24T12:58:54Z")
Could we get your editor logs? ---
**Author:** ![DIANAMITE4](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@DIANAMITE4](https://forums.unrealengine.com/u/DIANAMITE4)\ **Post date:** [October 24, 2025, 1:43pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/4 "2025-10-24T13:43:22Z")
![Screenshot 2025-10-24 134243](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/6/8/d6890491c801b2604d5f38fb6e81a86f1fa8f0bd.png) ---
**Author:** ![Flak](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/flak/32/769441_2.png) [@Flak](https://forums.unrealengine.com/u/Flak)\ **Post date:** [October 24, 2025, 2:11pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/5 "2025-10-24T14:11:13Z")
Could we get your actual editor log files please, @DIANAMITE4 ? [How to get your Fortnite logs](https://forums.unrealengine.com/t/how-to-get-your-fortnite-logs/682382) ---
**Author:** ![davidpkami](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/davidpkami/32/1040403_2.png) [@davidpkami](https://forums.unrealengine.com/u/davidpkami)\ **Post date:** [October 24, 2025, 2:21pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/6 "2025-10-24T14:21:02Z")
[UEFNLogs.rar](https://forums.unrealengine.com/uploads/short-url/iutG2rdhyXLOP5UHc2QXZkdEhwr.rar) (19.5 MB) [FortniteLogs.rar](https://forums.unrealengine.com/uploads/short-url/dXSoviv5WZKwQrh5LxQ8qLMs17g.rar) (14.2 MB) @Flak ---
**Author:** ![MurfMusik](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@MurfMusik](https://forums.unrealengine.com/u/MurfMusik)\ **Post date:** [October 24, 2025, 5:03pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/8 "2025-10-24T17:03:59Z")
Im having the same issue jsut now this seems to be a problem ---
**Author:** ![CWBob100](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/cwbob100/32/1195866_2.png) [@CWBob100](https://forums.unrealengine.com/u/CWBob100)\ **Post date:** [October 24, 2025, 7:35pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/9 "2025-10-24T19:35:40Z")
happening in all of Bullseye maps too ---
**Author:** ![OberonTV](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@OberonTV](https://forums.unrealengine.com/u/OberonTV)\ **Post date:** [October 24, 2025, 8:23pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/10 "2025-10-24T20:23:06Z")
Me too same problem here ---
**Author:** ![EL3ktro](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@EL3ktro](https://forums.unrealengine.com/u/EL3ktro)\ **Post date:** [October 25, 2025, 12:55am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/11 "2025-10-25T00:55:44Z")
experiencing the same issue, cannot publish and it seems to not let me launch a session for other team members ---
**Author:** ![jojacreatf](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jojacreatf/32/1071606_2.png) [@jojacreatf](https://forums.unrealengine.com/u/jojacreatf)\ **Post date:** [October 25, 2025, 4:33am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/12 "2025-10-25T04:33:56Z")
> [@davidpkami](#): > > ### Summary > > Can not publish iOS: Failed to prepare data > > ### Please select what you are reporting on: > > Creative > > ### What Type of Bug are you experiencing? > > Assets > > ### Steps to Reproduce > > Just try to publish > > ### Expected Result > > Publicated > > ### Observed Result > > Can not publish iOS: Failed to prepare data > > ### Platform(s) > > PC Help ![imagen_2025-10-24_105556926](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/0/0/4008578e3232e991b54453f45ea5d8611dbfa46f.png) [logs2.zip](https://forums.unrealengine.com/uploads/short-url/8dy0mRcwZCvAt9Ho8IP241416DS.zip) (12.7 MB) [Logs.zip](https://forums.unrealengine.com/uploads/short-url/31UCxbowjKSWqN7SJ4sKKwH0yBI.zip) (17.7 MB) ---
**Author:** ![jojacreatf](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jojacreatf/32/1071606_2.png) [@jojacreatf](https://forums.unrealengine.com/u/jojacreatf)\ **Post date:** [October 25, 2025, 4:50am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/13 "2025-10-25T04:50:37Z")
### **Summary** Can not publish iOS: Failed to prepare data ### **Please select what you are reporting on:** Creative ### **What Type of Bug are you experiencing?** Assets ### **Steps to Reproduce** Just try to publish ### **Expected Result** Publicated ### **Observed Result** Can not publish iOS: Failed to prepare data ### **Platform(s)** PC ![imagen_2025-10-24_105556926](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/0/0/4008578e3232e991b54453f45ea5d8611dbfa46f.png) [logs2.zip](https://forums.unrealengine.com/uploads/short-url/8dy0mRcwZCvAt9Ho8IP241416DS.zip) (12.7 MB) [Logs.zip](https://forums.unrealengine.com/uploads/short-url/31UCxbowjKSWqN7SJ4sKKwH0yBI.zip) (17.7 MB) ---
**Author:** ![OberonTV](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@OberonTV](https://forums.unrealengine.com/u/OberonTV)\ **Post date:** [October 25, 2025, 10:15am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/14 "2025-10-25T10:15:16Z")
```auto LoadErrors: Warning: While trying to load package /Game/Building/ActorBlueprints/Arid/Props/Diner/Diner_CeilingFan, a dependent package /Game/NeverCook/EditorUtilities/Environment/ActorSwapUtility/EUC_ArtRefresh was not available. Additional explanatory information follows: FPackageName: Skipped package /Game/NeverCook/EditorUtilities/Environment/ActorSwapUtility/EUC_ArtRefresh has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/Fortnite/FortniteGame/Content/NeverCook/EditorUtilities/Environment/ActorSwapUtility/EUC_ArtRefresh'. Perhaps it has been deleted or was not synced? LoadErrors: Warning: While trying to load package /Game/Athena/BuildingActors/Props/Building/ActorBlueprints/Containers/Athena_Prop_Storage_Barrel_02, a dependent package /Game/NeverCook/EditorUtilities/Environment/ActorSwapUtility/EUC_ArtRefresh was not available. Additional explanatory information follows: FPackageName: Skipped package /Game/NeverCook/EditorUtilities/Environment/ActorSwapUtility/EUC_ArtRefresh has a valid, mounted, mount point but does not exist either on disk or in iostore. The uncooked file would be expected on disk at 'D:/Fortnite/Fortnite/FortniteGame/Content/NeverCook/EditorUtilities/Environment/ActorSwapUtility/EUC_ArtRefresh'. Perhaps it has been deleted or was not synced? ``` ---
**Author:** ![GraemeThornton](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/graemethornton/32/924260_2.png) [@GraemeThornton](https://forums.unrealengine.com/u/GraemeThornton)\ **Post date:** [October 25, 2025, 4:09pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/15 "2025-10-25T16:09:35Z")
Hi everyone! We have discovered a bug with some of our online infrastructure which is causing this error. There is likely no issue with your projects, and as a workaround you should be able to use the “Create Private Code” function in UEFN and then publish via the creator portal as usual. We are continuing to investigate the full fix internally! Sorry for the inconvenience! ---
**Author:** ![Bug-Reporter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/bug-reporter/32/997076_2.png) [@Bug-Reporter](https://forums.unrealengine.com/u/Bug-Reporter)\ **Post date:** [March 31, 2026, 4:00pm UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/18 "2026-03-31T16:00:35Z")
FORT-1000393 is ‘Closed’ as ‘Fixed’. The issue will be addressed in 37.51. ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [April 22, 2026, 8:57am UTC](https://forums.unrealengine.com/t/can-not-publish-ios-failed-to-prepare-data/2668217/19 "2026-04-22T08:57:32Z")
This topic was automatically closed after 180 days. New replies are no longer allowed.