Error Messages Launching any UEFN Project

General Issues and Bug Reporting
, , , ,
1

Summary

I am getting a LONG list of Error Messages when I launch any UEFN Project, even a BLANK Template.

Please select what you are reporting on:

Unreal Editor for Fortnite

What Type of Bug are you experiencing?

Other

Steps to Reproduce

Launch UEFN, get errors. Launch any UEFN project, even a blank island template, get LONG list of errors.

Expected Result

Well, up until recently, I would launch UEFN and not get error messages.

Observed Result

Error messages – lots and lots of error messages

Platform(s)

13th Gen Intel(R) Core™ i9-13900KF 3.00 GHz, 64 GB ram, RTX 4090 Graphics Card, Windows 11

Island Code

Just launch UEFN, or any UEFN project

Additional Notes

Please help! This behavior just started recently and I want to be able to work in UEFN. Thank you.

2

UEFN Errors
UEFN Errors1928×992 316 KB

3

While trying to load package /Game/Effects/MudInteraction/NS_Mud_Bullet_Impact, a dependent package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/MudInteraction/Emitters/NE_Parent_Mud_DropsCollision.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Effects/MudInteraction/NS_Mud_Bullet_Impact, a dependent package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/MudInteraction/Emitters/NE_Parent_Mud_Splash.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/ShellEject/NS_ShellsFire_Sound_Looping, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Athena/Effects/Weapons/NS_Sniper_Scope_Glint, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/NS_Weapon_Reload_Smoke, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/Impacts/Water/NS_Impact_Water_Athena/NS_Impact_Water_Apollo, a dependent package /Game/Effects/Niagara/Emitters/Water/FoamEffect/FN_Water_Foam_SnapToSurface was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Water/FoamEffect/FN_Water_Foam_SnapToSurface 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Water/FoamEffect/FN_Water_Foam_SnapToSurface.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/Impacts/Water/NS_Impact_Water_Athena/NS_Impact_Water_Apollo, a dependent package /Game/Effects/Niagara/Modules/Water/WaterBodyLocation was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Water/WaterBodyLocation 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Water/WaterBodyLocation.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/Impacts/Water/NS_Impact_Water_Athena/NS_Impact_Water_Apollo, a dependent package /Game/Effects/Niagara/Emitters/Weapons/FN_NE_Weapons_Debris_SpriteSubUV/FN_Weapons_Debris_Sprite_SubUV_BETA was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Emitters/Weapons/FN_NE_Weapons_Debris_SpriteSubUV/FN_Weapons_Debris_Sprite_SubUV_BETA 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/Emitters/Weapons/FN_NE_Weapons_Debris_SpriteSubUV/FN_Weapons_Debris_Sprite_SubUV_BETA.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/Impacts/Water/NS_Impact_Water_Athena/NS_Impact_Water_Apollo, a dependent package /Game/Effects/Niagara/Modules/Mesh/FN_Mesh_Attributes was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Mesh/FN_Mesh_Attributes 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Mesh/FN_Mesh_Attributes.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/Impacts/Water/NS_Impact_Water_Athena/NS_Impact_Water_Apollo, a dependent package /Game/Effects/Niagara/Modules/Water/InitializeWaterSnapToOwner was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Water/InitializeWaterSnapToOwner 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Water/InitializeWaterSnapToOwner.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/Impacts/Chrome/NS_Impact_Chrome, a dependent package /Game/Effects/Niagara/Modules/Light/FN_Light_v2/FN_Light_v2 was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/Modules/Light/FN_Light_v2/FN_Light_v2 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/Modules/Light/FN_Light_v2/FN_Light_v2.uasset’. Perhaps it has been deleted or was not synced?

While trying to load package /Game/Weapons/FORT_Generic_Effects/ShellEject/NS_ShellsFire_Sound_Burst, a dependent package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar was not available. Additional explanatory information follows:
FPackageName: Skipped package /Game/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar 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:/Unreal Engine 5.0/Fortnite/FortniteGame/Content/Effects/Niagara/DynamicInputs/TimeOfDay/FNTimeOfDayScalar.uasset’. Perhaps it has been deleted or was not synced?

4

I have the same thing but different ones, Anyone has a fix?

5

i also have the same but mine are more Fortnite direct things and nothing i have on the map that is mine personally

6

Same thing for me, the same error messages and impossible to start a session

UPDATE :

I managed to launch my project and even publish a new version.

Here are the steps I followed to make it work:

  • I opened another project (one that works and launches successfully) and started a session.

  • Once the session loaded (the game launched and you’re in a play session), go back to UEFN and click on “Stop the game,” then “Exit the session.”

  • Then, in the game, open the menu and click on “Return to lobby.”

At this point, you are in the lobby, and the “UEFN session” tile is selected.

  • Go back to UEFN, close the project, and open the project that doesn’t launch.

  • In the game, start the UEFN session.

  • At the same time, start a session from UEFN.

By following these steps, my project launched again, and I can reopen it and start new sessions without any issues for now. However, I still have the errors shown in the photo posted above, but at least my project launches.

If my message can help anyone :slight_smile:

2 Likes
7

Fiz mais não resolveu, continuo com o UEFN fechando assim q tento editar alguma coisa no mapa! Alguem me ajuda?

8

(post deleted by author)

9

The manipulation does not concern a software problem which crashes when modifying a project.

I didn’t have the problem you described but while doing a search I found this post which dates back a few days :

https://www.reddit.com/r/FortniteCreative/comments/1gi5wcj/uefn_crashes_when_i_open_a_project_after_the/?rdt=41339

You can also try to check the files from the epic game launcher

Hoping that it can help you.