I just updated tp Mac OS High Sierra and now Unreal is not opening, anyone have a fix?
I have the same problem since 3 weeks, i’m on win10, and i tried 45 solution the game still don’t work.
Here’s my log
LoginId:1ce2e6585545e939a680589c954b31c3
EpicAccountId:835824c3860b4bc6ac21b2856218e183
SEGV_MAPERR at 0x3
FGenericPlatformMisc::RaiseException(unsigned int) Address = 0x10098799b (filename not found) [in UE4Editor-Core.dylib]
FMacErrorOutputDevice::Serialize(wchar_t const*, ELogVerbosity::Type, FName const&) Address = 0x1067d6c19 (filename not found) [in UE4Editor-ApplicationCore.dylib]
FOutputDevice::Logf(wchar_t const*, …) Address = 0x100c35c9d (filename not found) [in UE4Editor-Core.dylib]
FDebug::AssertFailed(char const*, char const*, int, wchar_t const*, …) Address = 0x100babefb (filename not found) [in UE4Editor-Core.dylib]
CreateMTLRenderPipeline(FGraphicsPipelineStateInitializer const&, EMetalIndexType) Address = 0x12338aab4 (filename not found) [in UE4Editor-MetalRHI.dylib]
FMetalGraphicsPipelineState::FMetalGraphicsPipelineState(FGraphicsPipelineStateInitializer const&) Address = 0x12331e35a (filename not found) [in UE4Editor-MetalRHI.dylib]
FMetalDynamicRHI::RHICreateGraphicsPipelineState(FGraphicsPipelineStateInitializer const&) Address = 0x12331e955 (filename not found) [in UE4Editor-MetalRHI.dylib]
GetAndOrCreateGraphicsPipelineState(FRHICommandList&, FGraphicsPipelineStateInitializer const&, EApplyRendertargetOption) Address = 0x1064ae391 (filename not found) [in UE4Editor-RHI.dylib]
SetGraphicsPipelineState(FRHICommandList&, FGraphicsPipelineStateInitializer const&, EApplyRendertargetOption) Address = 0x1064ad6b8 (filename not found) [in UE4Editor-RHI.dylib]
FDeferredShadingSceneRenderer::PreRenderPrePass(FRHICommandListImmediate&) Address = 0x1102a3e30 (filename not found) [in UE4Editor-Renderer.dylib]
FDeferredShadingSceneRenderer::RenderPrePass(FRHICommandListImmediate&, TFunctionRef) Address = 0x110294093 (filename not found) [in UE4Editor-Renderer.dylib]
FDeferredShadingSceneRenderer::Render(FRHICommandListImmediate&) Address = 0x1102857f8 (filename not found) [in UE4Editor-Renderer.dylib]
UpdateSceneCaptureContent_RenderThread(FRHICommandListImmediate&, FSceneRenderer*, FRenderTarget*, FTexture*, FName, FResolveParams const&) Address = 0x11098fc27 (filename not found) [in UE4Editor-Renderer.dylib]
TGraphTask >::ExecuteTask(TArray&, ENamedThreads::Type) Address = 0x1109906e4 (filename not found) [in UE4Editor-Renderer.dylib]
FNamedTaskThread::ProcessTasksNamedThread(int, bool) Address = 0x1009a3f1c (filename not found) [in UE4Editor-Core.dylib]
FNamedTaskThread::ProcessTasksUntilQuit(int) Address = 0x1009a2fc8 (filename not found) [in UE4Editor-Core.dylib]
FTaskGraphImplementation::ProcessThreadUntilRequestReturn(ENamedThreads::Type) Address = 0x10099f0ae (filename not found) [in UE4Editor-Core.dylib]
RenderingThreadMain(FEvent*) Address = 0x10641c2a1 (filename not found) [in UE4Editor-RenderCore.dylib]
FRenderingThread::Run() Address = 0x106430d17 (filename not found) [in UE4Editor-RenderCore.dylib]
FRunnableThreadPThread::Run() Address = 0x100a1827e (filename not found) [in UE4Editor-Core.dylib]
FRunnableThreadPThread::_ThreadProc(void*) Address = 0x1009c2fc7 (filename not found) [in UE4Editor-Core.dylib]
_pthread_body Address = 0x7fff758ae6c1 (filename not found) [in libsystem_pthread.dylib]
_pthread_body Address = 0x7fff758ae56d (filename not found) [in libsystem_pthread.dylib]
thread_start Address = 0x7fff758adc5d (filename not found) [in libsystem_pthread.dylib]
I have also the same 
This is what I found in the crash report… He can’t read some things.
Here is the crash report.
same problem. Any solution??
hey! had the same problem and just found a way to fix it. Instead of opening the app, find it in finder instead, right click on it, click show package contents, then go into the “MacOS” folder and open the “EpicGamesLauncher”.
I wish I could upvote this more than once!
IF YOU’RE ON MAC HIGH SIERRA AND THE LAUNCHER CRASHES AFTER INSTALL, TRY THIS.
It worked for me too and that was so simple!
infjwithanife
I had to rebuild my Mac when this happened. I f you have a Mac pro desktop you can update the Mac, but if you have an old Mac book pro it’s over.You need anew computer.
Go to micro center and get a new Metal compatible graphic card. this is the main problem. they have videos on youtube showing how to put them in. You need to also buy wires and you’ll need to buy and add a new hard drive or they might call it RAM. when you buy the new graphics card you might need to buy a new monitor because the Mac will not fit the graphics card. This upgrade cost me $700.
Now my problem is adding the SDK. it’s to hard on a Mac.
If you have the money buy more memory, you can upgrade from 8 to 64.
Me too! high sierra, old project (4.17) crashes on load with UE 4.18.2. Please help! ;-/
Looks like we are dead in the water to Unreal comes up with a fix. They have to know this is going on and tons of people are locked out of the network.
If you have a Mac Pro desk top you can fix the problem but it cost between $500 to $1000.00 dollars. I did it for $700 and I want to spend another $500 and that turns your Mac Pro to a beast. Look on youtube for upgrading your mac pro desk top.
If you have a Mac Pro desk top you can fix the problem but it cost between $500 to $1000.00 dollars. I did it for $700 and I want to spend another $500 and that turns your Mac Pro to a beast. Look on youtube for upgrading your mac pro desk top.
i got the same problem help pls
Good news, I’m back in unreal game engine. It took about 6 to $700 but its working on the Mac Pro. This is the upgrade I did on the mac . new radeon 580 graphics card, added a new hard drive and new ram. The graphics card is a metal type card. Look the upgrade up on youtube.
This is the fix. New Radeon 580 metal grapgics car, add a new hard drive. You have to get a new monitor because the old one can’t fit the new card. And you new new wire’s for the card and monitor. Cost $700. Look the upgrade up on youtube.
I have an iMac and followed these steps but I cannot find the “MacOS” folder. I tried searching, but to no avail. help!