Project Crash at loading 91% ver 4.8.2

Deleted user/AppData/Local/UnrealEngine Directory and finally got a Report.

At first i couldn’t tell if it was the launcher or the project.
I have yet to uninstall 4.8.** and reinstall but i should get to that today at some point.

the project was fine, got up for a coffee break and come back to a closed editor and a project that couldn’t be opened.
I see a lot of posts saying 4.8.0+ failed at 91% ,are due to graphics drivers. so ill uninstall those and install fresh copies to see if that fixes this issue, but i’m pretty sure that’s not the case.

Any information would be greatly appreciated.

EpicAccountId:d6dc85818ed74b8d9db87626ab2d3ad7

Unknown exception - code 00000001 (first/second chance not available)

"Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\AssetRegistry\Private\NameTableArchive.cpp] [Line: 97] 
Bad name index 0//0
"

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:355]
UE4Editor_AssetRegistry!FNameTableArchiveReader::operator<<() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\nametablearchive.cpp:97]
UE4Editor_AssetRegistry!FAssetDataGatherer::SerializeCache() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\assetdatagatherer.cpp:475]
UE4Editor_AssetRegistry!FAssetDataGatherer::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\assetdatagatherer.cpp:81]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]

Updated to 4.8.3 to see if it would over write bad files to no avail
Crashed at 94% this time.

    MachineId:AE5A3330492965F07CAE4E84C23B5183
    EpicAccountId:d6dc85818ed74b8d9db87626ab2d3ad7
    
    Unknown exception - code 00000001 (first/second chance not available)
    
    "Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\AssetRegistry\Private\NameTableArchive.cpp] [Line: 97] 
    Bad name index 0//0
    "
    
    UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:355]
    UE4Editor_AssetRegistry!FNameTableArchiveReader::operator<<() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\nametablearchive.cpp:97]
    UE4Editor_AssetRegistry!FAssetDataGatherer::SerializeCache() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\assetdatagatherer.cpp:475]
    UE4Editor_AssetRegistry!FAssetDataGatherer::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\assetdatagatherer.cpp:81]
    UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]

Hi Iridescence,

This appears to be a crash that has been fixed in 4.9 (UE-14664). Try deleting the Intermediate folder from the project and restart. Let me know if that doesn’t fix it. Thanks!

Hey Ben -

I was able to get the project to load in 4.9.0, but a ton of errors and external references… but its just so odd that after so much time that has gone by for it to do that. We’ve been working the project for 10-15 hour days for nearly a month on 4.8.2. I’ve sent reports as well hopefully, by deleting Intermediate Folder, ill see some change with the external references and map errors.

Will post back in a few, thanks for the reply!

As expected the project will load in 4.8.3 without Intermediate folder( of course forcing shader recompilation) with out the map errors and external references like i got in 4.9.0.
Any way to solve that, as i foresee that being an issue if we do decide to update to 4.9.0 p3(convert a copy method)?

Thanks for the timely help on a Saturday night!

Sorry for the delay, I was out last week! You should only have to delete the Intermediate file the one time to get rid of whatever file was corrupted in there, not every time you want to reopen the project, so you should only have to wait for shaders to recompile once more. If this same problem occurs again (possible in 4.8), just repeat the process. This particular crash shouldn’t be a problem in 4.9, so once you have a copy of the project in 4.9 Preview I don’t think you’ll need to worry about it at all.

I thank you for getting back to me Ben.
Loud and clear.