Still cannot launch 4.8.1

Development Platform & Builds
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1

Hello,

I couldn’t run UE 4.8.0 because it crashed at launch (before the editor appears). Now I updated to 4.8.1 and I still cannot launch it. It crashes the same way, with there messages:
MachineId:ADC23EB04A3FB98E0590B9B7A7C40E2A
EpicAccountId:ed3845f0ec4844e7b1643685e00eaaec

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

“”

LibOVRRT64_0_6
LibOVRRT64_0_6
LibOVRRT64_0_6
LibOVRRT64_0_6
LibOVRRT64_0_6
UE4Editor_OculusRift!FOculusRiftHMD::InitDevice()
UE4Editor_OculusRift!FOculusRiftHMD::Startup()
UE4Editor_OculusRift!FOculusRiftHMD::FOculusRiftHMD()
UE4Editor_OculusRift!FOculusRiftPlugin::CreateHeadMountedDisplay()
UE4Editor_Engine!UEngine::InitializeHMDDevice() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\engine\private\unrealengine.cpp:1839]
UE4Editor_Engine!UEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\engine\private\unrealengine.cpp:739]
UE4Editor_UnrealEd!UEditorEngine::InitEditor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorengine.cpp:425]
UE4Editor_UnrealEd!UEditorEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\editorengine.cpp:580]
UE4Editor_UnrealEd!UUnrealEdEngine::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealedengine.cpp:48]
UE4Editor!FEngineLoop::Init() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\runtime\launch\private\launchengineloop.cpp:2026]
UE4Editor_UnrealEd!EditorInit() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.8\engine\source\editor\unrealed\private\unrealed.cpp:63]
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]

It looks like it is related to Oculus. So far I used to have 0.4.4 drivers installed to run the DK2 but as it crashed I uninstalled every drivers and application from Oculus and UE keeps crashing.

I’ve sent a dump, hope that helps.

Thank you very much for any help,

Best regards,

Werwack

2

Hello werwack,

After looking into the issue that you have mentioned above I have found that this is a known issue (UE-16177) and that it has been sent to the developers for further consideration. There has been some success with updating the Oculus Runtime to version 6.0.1. I will be sure to bump the community interest for this issue. Thank you for your time and information.

Make it a great day

3

Hi Rudy,

Thank you very much for the answer.
I updated the Oculus Runtime as mentioned and everything works great now :slight_smile:

Thank you very much

Julien