4.8 crashes while opening project from 4.7.6

Hello,

I was trying to open the newest preview of 4.8. However each time I’m trying to load old project, even brand new, I got and error and it crashes.

MachineId:8ADC355D404C297A6F5159AF1620D39D
EpicAccountId:362754e39beb4270a94b7aa4c678b08d
Unknown exception - code 00000001 (first/second chance not available)
"Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\Core\Private\HAL\FileManagerGeneric.cpp] [Line: 605]
Invalid Buff
KERNELBASE
UE4Editor_Core!FOutputDeviceWindowsError::Serialize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsplatformoutputdevices.cpp:95]
UE4Editor_Core!FOutputDevice::Logf__VA() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:144]
UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\misc\outputdevice.cpp:360]
UE4Editor_Core!FArchiveFileReaderGeneric::InternalPrecache() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\hal\filemanagergeneric.cpp:605]
UE4Editor_Core!FArchiveFileReaderGeneric::Serialize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\hal\filemanagergeneric.cpp:644]
UE4Editor_CoreUObject!operator<<() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\packagefilesummary.cpp:13]
UE4Editor_AssetRegistry!FPackageReader::OpenPackageFile() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\packagereader.cpp:37]
UE4Editor_AssetRegistry!FAssetDataGatherer::ReadAssetFile() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\assetdatagatherer.cpp:422]
UE4Editor_AssetRegistry!FAssetDataGatherer::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\assetregistry\private\assetdatagatherer.cpp:186]
UE4Editor_Core!FRunnableThreadWin::Run() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:73]
UE4Editor_Core!FRunnableThreadWin::GuardedRun() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\core\private\windows\windowsrunnablethread.cpp:26]
kernel32
ntdll

Any ideas what could be wrong ?

Thank you,
Miriam

Hi Miriam -

Thank you for your report. We have already identified the cause of this issue and the fix is in testing now. We hope to have this out in a future release of the engine.

Eric Ketchum

Great news, thank you ! :slight_smile:
Any ETA of the next release ? I’m currently working on my thesis and the working 4.8 preview would really help me with the new procedural foliage placement.

Things are always fluctuating based on fixes for bugs and testing but I can safely say it will be soon.