UE4 Editor crash during launch

Development Platform & Builds
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1

The editor crash every time I try to launch it. I try installing the older version 4.11.2 and 4.10.4, but they both crash too. I did a clean reinstall but same result. I didn’t have any problem launching the editor a while back after I did a reformat on my PC.

Crash Report:

MachineId:32B7EA5C4F48954ECECB7A8337975FC1
EpicAccountId:f4ae3e16f5854c9982e4b4a4a43a3fc0

Access violation - code c0000005 (first/second chance not available)

XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
XAudio2_7
UE4Editor_XAudio2!FXAudio2EffectsManager::CreateReverbVoice() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\windows\xaudio2\private\xaudio2effects.cpp:403]
UE4Editor_XAudio2!FXAudio2EffectsManager::FXAudio2EffectsManager() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\windows\xaudio2\private\xaudio2effects.cpp:507]
UE4Editor_XAudio2!FXAudio2Device::CreateEffectsManager() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\windows\xaudio2\private\xaudio2device.cpp:265]
UE4Editor_Engine!FAudioDevice::Init() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\audiodevice.cpp:157]
UE4Editor_Engine!FAudioDeviceManager::CreateAudioDevice() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\audiodevicemanager.cpp:145]
UE4Editor_Engine!UEngine::InitializeAudioDeviceManager() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\unrealengine.cpp:1892]
UE4Editor_Engine!UEngine::Init() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\engine\private\unrealengine.cpp:884]
UE4Editor_UnrealEd!UEditorEngine::InitEditor() [d:\build++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:439]
UE4Editor_UnrealEd!UEditorEngine::Init() [d:\build++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\editorengine.cpp:595]
UE4Editor_UnrealEd!UUnrealEdEngine::Init() [d:\build++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\unrealedengine.cpp:53]
UE4Editor!FEngineLoop::Init() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launchengineloop.cpp:2281]
UE4Editor_UnrealEd!EditorInit() [d:\build++ue4+release-4.12+compile\sync\engine\source\editor\unrealed\private\unrealed.cpp:66]
UE4Editor!GuardedMain() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\launch.cpp:137]
UE4Editor!GuardedMainWrapper() [d:\build++ue4+release-4.12+compile\sync\engine\source\runtime\launch\private\windows\launchwindows.cpp:126]
UE4Editor!WinMain() [d:\build++ue4+release-4.12+compile\sync\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

2

Hi ,

It appears the crash is occurring when it gets to the XAudio2_7.dll. A similar issue was resolved on the following post:

Unreal Engine 4.8 doesn’t produce any sound

by installing: DirectX End-User Runtimes

I suspect this may have been corrupted when you reformatted your PC. Try this and let us know if it does not resolve your issue.

Thanks,

.

3

Apparently installing DirectX End-User Runtimes didn’t overwrite the corrupted file. I had to manually delete the XAudio2_7.dll and reinstall it. It WORK! Thank you .