Warning: Failed to find the world in already loaded world package

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1

I was working on my senior project when my computer crashed. When i went to reopen my project the scene i was working in is no longer in the content browser. I can see the .umap in my folder but the project cant find it! Please let me know if anyone has gone through this before!

output log:

LoadErrors: New page: Loading map: Arcadia_v03.umap
LogWorld: UWorld::CleanupWorld for Untitled, bSessionEnded=true, bCleanupResources=true
LogSlate: InvalidateAllWidgets triggered.  All widgets were invalidated
MapCheck: New page: Map Check
LightingResults: New page: Lighting Build
LogAudio: Display: Audio Device unregistered from world 'None'.
LogUObjectHash: Compacting FUObjectHashTables data took   1.09ms
LogSlate: Window 'Message' being destroyed
Message dialog closed, result: Ok, title: Message, text: Failed to find the world in already loaded world package /Game/Arcadia_v03! See log for more details.
LogReferenceChain: Package /Game/Arcadia_v03 is not currently reachable.
LogEditorServer: Warning: Failed to find the world in already loaded world package /Game/Arcadia_v03! Referenced by:

Package /Game/Arcadia_v03 is not currently reachable.

2

Same issue here, but I’m using UE5 Early Access. “Failed to find the world in already loaded world package /Game/Maps/KarczmaPodgrodzie! See log for more details.” I can see the .umap in the file explorer, but not in the content browser. Still can’t find the solution

3

Same thing for me on UE5 EA, did you find any solution?

4

Please! same here! im losing lots of work!! help!

5

Hello all,
Same here, with 4.27
Can’t open the map I was workin on, anyone find a solution please?

6

Did yall find a solution?

7

Captura de Pantalla 2022-07-27 a las 16.22.48
Captura de Pantalla 2022-07-27 a las 16.22.481108Ă—272 18.7 KB

Captura de Pantalla 2022-07-27 a las 16.24.15
Captura de Pantalla 2022-07-27 a las 16.24.15300Ă—516 44.7 KB

/Game = /Content
Go to that folder and delete the hidden Main.umap file.

1 Like
8

Shut down Unreal and, using Windows Explorer, move the problematic umap file to another folder.
Afterwards, copy a backup of the umap file into the same project folder.
Fire up Unreal again. You should see the old umap file in Unreal’s Browser too.

Shut Unreal down again and copy the problematic umap file back to where it was, overwriting the backup one.
Launch Unreal and the right umap file should be generated in Unreal’s Browser.

9

Didn’t work for me