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Unreal Engine Crashes when trying to load my project

Help please, I was working on my project last night.. Today when I opened unreal engine.. It crashes on 93 %. I got this message. I have no idea how to solve this.

MachineId:1A0A48A0412C40C6E1EF64A69EC5D20C EpicAccountId:33f659228d144e7a8cde3867b62ec8b5

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

"Assertion failed: !InTemplate || InTemplate->IsA(InClass) || (InFlags & RF_ClassDefaultObject) [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.8\Engine\Source\Runtime\CoreUObject\Private\UObje

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:355] UE4Editor_CoreUObject!StaticConstructObject_Internal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:2514] UE4Editor_CoreUObject!FLinkerLoad::CreateExport() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:3593] UE4Editor_CoreUObject!FLinkerLoad::CreateExportAndPreload() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2581] UE4Editor_CoreUObject!FLinkerLoad::LoadAllObjects() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\linkerload.cpp:2689] UE4Editor_CoreUObject!LoadPackageInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:997] UE4Editor_UnrealEd!UEditorEngine::Map_Load() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorserver.cpp:2291] UE4Editor_UnrealEd!UEditorEngine::HandleMapCommand() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorserver.cpp:5768] UE4Editor_UnrealEd!UEditorEngine::Exec() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorserver.cpp:5262] UE4Editor_UnrealEd!UUnrealEdEngine::Exec() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealedsrv.cpp:742] UE4Editor_UnrealEd!FEditorFileUtils::LoadMap() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\filehelpers.cpp:1992] UE4Editor_UnrealEd!FEditorFileUtils::LoadDefaultMapAtStartup() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\filehelpers.cpp:3193] UE4Editor_UnrealEd!FUnrealEdMisc::OnInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealedmisc.cpp:300] UE4Editor_UnrealEd!EditorInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealed.cpp:86] UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\launch.cpp:133] UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\windows\launchwindows.cpp:200]

Product Version: UE 4.8
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asked Jul 08 '15 at 06:34 PM in Using UE4

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Have you tried the basics like reinstall the engine? Also, if you don't already, I suggest keeping a redundant copy of an old version or use SVN to help with it. I could be wrong, but it doesn't look like the issue is the project but UE itself.

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answered Jul 08 '15 at 07:37 PM

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avatar image Athidi Jul 08 '15 at 08:33 PM

Thanks for the reply. :) Im trying to reinstall the engine now. I will let you know how it goes. If this doesnt work I will try to just save all my content into a new project. Kind of lame, but it works, hopefully.. Have a lot of work in this project.

Opening a new blueprint project works, so I can only assume this has something to do with my specific project.

avatar image Athidi Jul 08 '15 at 09:07 PM

Reinstall didnt work. I have no idea what to do next. I tried verify also. :(

avatar image Athidi Jul 09 '15 at 11:37 AM

ok.. So I did it the hard way, started a blank project, copied all the content, and just made the input and object channels and so on again.. Took me 10 min.. Works.. :P

avatar image Ratatat_RandyTTV Jul 09 '15 at 07:59 PM

Awesome! That was my next suggestion. Now don't forget that redundancy I mentioned so you won't have to worry about going through this again. :)

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