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Can't Launch Unreal Engine 4.10.1[SOLVED]

I can't get unreal engine to launch, every time I try it crashes. I can neither open nor create a new project. UE 4.10.0 was running normally. I regret to have installed the update.

MachineId:97C3A7E745C1065D64F70B95E6112BE4 EpicAccountId:4d5d2cd103b64076ba2abddee484fa80

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

"Assertion failed: TCString::Strlen(InName)<=NAME_SIZE [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Core\Private\UObject\UnrealNames.cpp] [Line: 472] "

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\misc\outputdevice.cpp:374] UE4Editor_Core!FName::InitInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\uobject\unrealnames.cpp:475] UE4Editor_Core!FName::FName() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\uobject\unrealnames.cpp:368] UE4Editor_RenderCore!FindUniformBufferStructByName() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\rendercore\private\rendercore.cpp:222] UE4Editor_ShaderCore!FShader::SerializeBase() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\shadercore\private\shader.cpp:864] UE4Editor_Engine!TShaderMap::SerializeInline() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\shadercore\public\shader.h:1160] UE4Editor_Engine!FMaterialShaderMap::Serialize() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\materialshader.cpp:1690] UE4Editor_Engine!FMaterialShaderMap::LoadFromDerivedDataCache() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\materialshader.cpp:782] UE4Editor_Engine!FMaterial::CacheShaders() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\materialshared.cpp:1339] UE4Editor_Engine!FMaterial::CacheShaders() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\materialshared.cpp:1291] UE4Editor_Engine!UMaterial::CacheShadersForResources() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\material.cpp:1902] UE4Editor_Engine!UMaterial::CacheResourceShadersForRendering() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\material.cpp:1820] UE4Editor_Engine!UMaterial::PostLoad() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\materials\material.cpp:2448] UE4Editor_CoreUObject!UObject::ConditionalPostLoad() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\obj.cpp:723] UE4Editor_CoreUObject!EndLoad() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:1286] UE4Editor_CoreUObject!LoadPackageInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:1042] UE4Editor_CoreUObject!ResolveName() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:681] UE4Editor_CoreUObject!StaticLoadObjectInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:768] UE4Editor_CoreUObject!StaticLoadObject() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:832] UE4Editor_Engine!LoadSpecialMaterial() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\unrealengine.cpp:1546] UE4Editor_Engine!UEngine::InitializeObjectReferences() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\unrealengine.cpp:1593] UE4Editor_UnrealEd!UEditorEngine::InitializeObjectReferences() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\editorengine.cpp:541] UE4Editor_Engine!UEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\unrealengine.cpp:782] UE4Editor_UnrealEd!UEditorEngine::InitEditor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\editorengine.cpp:430] UE4Editor_UnrealEd!UEditorEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\editorengine.cpp:585] UE4Editor_UnrealEd!UUnrealEdEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\unrealedengine.cpp:50] UE4Editor!FEngineLoop::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launchengineloop.cpp:2094] UE4Editor_UnrealEd!EditorInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\unrealed.cpp:63] UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launch.cpp:133] UE4Editor!GuardedMainWrapper() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\windows\launchwindows.cpp:126] UE4Editor!WinMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\windows\launchwindows.cpp:200] UE4Editor!__scrt_common_main_seh() [f:\dd\vctools\crt\vcstartup\src\startup\exe_common.inl:264] kernel32 ntdll

================================================================

EDIT: The solution is delete everything inside the folder LocalDisk:/Users/"YourName"/AppData/Local/UnrealEngine and reinstall Epic Games Launcher and Unreal Editor 4.10.1

Product Version: UE 4.10
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asked Dec 15 '15 at 07:58 PM in Bug Reports

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David Trindade
1 1 2 5

avatar image James83 Dec 14 '15 at 04:16 PM

It affects me too! Same problem: after upgrade to 4.10.1 the editor won't start and the message reported is like this one!!

avatar image Sean L ♦♦ STAFF Dec 14 '15 at 05:47 PM

Hello,

Have you tried uninstalling and reinstalling the engine, including deleting any files related to 4.10.1 in the directory that you install your engine to?

avatar image David Trindade Dec 14 '15 at 11:35 PM

Yes, I already tried it. Deleted all versions and installed, the error persisted. And even I installed the 4.9.2 which also functioned normally.

avatar image Sean L ♦♦ STAFF Dec 15 '15 at 02:14 PM

Could you provide your latest logs so that we can have a look at what could be causing the issue? You can find these on your LocalDisk\Users\"YourName"\AppData\Local\UnrealEngine\4.10\Saved\Logs

avatar image David Trindade Dec 15 '15 at 03:05 PM

[link text][1] [1]: /storage/temp/70721-logs.zip

logs.zip (49.9 kB)
avatar image Sean L ♦♦ STAFF Dec 15 '15 at 05:18 PM

Can you attempt to try and open a project without the Oculus plugged in? I noticed that in your logs there was mention of a possible issue with the Oculus runtime. Let me know if that makes a difference.

avatar image David Trindade Dec 15 '15 at 05:25 PM

What? O.o I didn't even have an oculus

avatar image dreamsnaper Dec 20 '17 at 01:34 AM

hi every one i am getting error when starting unreal engine 0xc0000005 please help i have tried many things

avatar image dreamsnaper Dec 20 '17 at 01:36 AM

here is screen shot

[1]: /storage/temp/224478-error.jpg

error.jpg (109.2 kB)
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1 answer: sort voted first

Did you delete this folder when you reinstalled? C:/Users/Kilowog01/AppData/Local/UnrealEngine If not, you will want to attempt to reinstall again, and delete the DerivedDataCache that is in that location.

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answered Dec 15 '15 at 05:41 PM

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Sean L ♦♦ STAFF
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avatar image David Trindade Dec 15 '15 at 06:19 PM

I will try it. I will uninstall Epic Launcher too, when done everything I come back here with the results.

avatar image David Trindade Dec 15 '15 at 07:49 PM

Delete all files in the folder and reinstall everything works great. Thank you so much! :D

avatar image James83 Dec 16 '15 at 08:02 AM

Oh that's wonderful!!! I have no dsl connection these days so I had no chances to try but I'm using Oculus and your workaround seems really inherent to my situations! Thank you very much!!!

avatar image Tisky07 Jan 09 '16 at 03:18 AM

Hi,

I have the same problem, I have make all what you say but the problem stay... Have you got maybe an other solution.

Best regards

avatar image Sean L ♦♦ STAFF Jan 11 '16 at 01:03 PM

Hello,

Could you please detail exactly which solutions you have tried?

avatar image James83 Jan 09 '16 at 12:17 PM

I can finally confirm your solution: deleting the file "DerivedDataCache" fixed the problem. Note: I'm actually using an DK2 Rift, but I can't tell if it's related to this issue

avatar image tannynitro Sep 17 '16 at 12:17 PM

where is DerivedDataCache...?

avatar image Sean L ♦♦ STAFF Sep 19 '16 at 01:38 PM

C:\Users\YourUserName\AppData\Local\UnrealEngine\EngineVersion#

You should be able to find it here.

Have a great day!

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