UEFN crashing on startup.

General Issues and Bug Reporting
, , ,
1

image
image729Ă—591 30.2 KB

LoginId:e921f74243d2d62cfc1d218aeef895bf
EpicAccountId:9ba1dc7650164341b7aeafa536e2656f

Fatal error: [File:D:\build\++Fortnite\Sync\Engine\Source\Developer\DerivedDataCache\Private\DerivedDataBackends.cpp] [Line: 196] Unable to create default cache graph 'InstalledDerivedDataBackendGraph' because no cache store was available.

UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
UnrealEditorFortnite_Win64_Shipping
kernel32
2

@hamood123213 Thank you for your report! Can you please re-post using the “New Issue” option on the Issues and Bug Reporting forums? Posts with this feature are connected directly into our development team so we can quickly get to them!For more information, such as how to get the reference ID, please check out the article here: https://create.fortnite.com/news/using-the-creative-and-uefn-bug-reporting-form

3

i got it fixed, UEFN couldnt create a cache so i gave it permissions to the hhd and worked. permission probelm

2 Likes
5

I am having the exact same problem. SSD laptop, i do not know how to give permissions either. Was working fine yesterday and now it wont launch with the same errors.

6

this was a while ago, but if i recall correctly i went to the D: disk, left click, properties > security and then changed permissions in every user to have full control. try doing this and let me know if it works.

7

I have solution. Same error with Unreal 5.4 Fatal error: [File:D:\build\ ] It’s worked in my case. I have Drives - C ; D ; H . UE5.3 was installed on drive H and error was about drive D. My solution (It’s dumb but works) I change drive mark letters D to Z and H to D. Then I rename 5.4 folder to 5.44 and press install . When it’s loads 1% , I stop download and paste everything from 5.44 to new one 5.4 . Then press install and it’s just verify files and launch! Except before start new error appears about Zen storage replaced from D to C , I just press Ok. All worked fine. I think it could be fixed in engine.ini but it’s just assumption. Cheers