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]

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.

Thanks for the reply. :slight_smile: 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.

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

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… :stuck_out_tongue:

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. :slight_smile: