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

anonymous_user_ddc1173a · April 22, 2021, 6:12pm

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.

xn_Liberex · July 15, 2021, 9:12pm

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

FRiZZoh · September 14, 2021, 2:43pm

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

DanMnz7x · September 28, 2021, 1:30am

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

seb6006 · February 27, 2022, 6:53am

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

whatsgoodman387 · March 15, 2022, 4:08pm

Did yall find a solution?

luislodosm1 · July 27, 2022, 3:29pm

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

WolfMan_1982 · September 27, 2023, 9:21pm

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.