Summary
Getting this error when trying to launch a session:
(copied somebody else’s as I’m not on my PC for a few days)
LogValkyrieValidation: Error: Disallowed reference to /Script/NavigationSystem.NavigationSystemV1, Referenced by:Content/Meadow_Environment_Set/Maps/MeadowsENV.umap (World), Plugin mount point:/SSMeadows.
UEFNValidation: Error: Disallowed reference to /Script/NavigationSystem.NavigationSystemV1, Referenced by:See below for asset list, Plugin mount point:/SSMeadows.
UEFNValidation: Error: /SSMeadows/Meadow_Environment_Set/Maps/MeadowsENV
My issue is that I imported some map from UE5 that had a few things that weren’t allowed by UEFN such a MaterialExpressionCode (or something like that), cables, volumetric clouds and notes, thus, I decided to delete them as they were either visual or unnecessary. Now, one issue remains, NavigationSystemV1, I deleted my entire UEFN map to reimport it but deleting NavigationSystemV1 from UE5 before-hand and all these other issues I mentioned that are fixed. Now, I saw it was a script and wasn’t able to delete it, how can I do so to delete this either on UEFN or on UE5 as I don’t want to import every item 1 by 1 and just copy my level instantly.
Please select what you are reporting on:
Unreal Editor for Fortnite
What Type of Bug are you experiencing?
Matchmaking
Steps to Reproduce
Migrate level from UE5 to UEFN
Open Level with project in UEFN
Attempt to Launch Session
Receive error
Expected Result
Session Launch
Observed Result
Project is not valid, see message log for more detail; Run Validation Fix-up; Project validation failed pop-ups and session does not launch as intended.
Platform(s)
Windows 11 21H2 (Custom OS FSOS)