Assertion Failed when opening a level

Development Platform & Builds Mobile
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1

Hi all,
I tried packaging a project on a couple of android devices. It works fine until I open any level. (Nothing fancy. Just “Open Level” node.)

Sometimes it is successfully loaded but most of the times the app gets terminated printing out the message below.

LogPlayLevel: adb: 11-27 19:31:34.773 10563 10598 D UE4 : [2017.11.27-10.31.34:773][ 2]Assertion failed: Assertion failed: !GEventDrivenLoaderEnabled || !bLockoutLegacyOperations || !EVENT_DRIVEN_ASYNC_LOAD_ACTIVE_AT_RUNTIME [File:D:\Build++UE4+Release-4.17+Compile\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp] [Line: 3114]

I googled and barely found info on this matter. I did found this(4.16 dedicated servers - can't load large maps - Programming & Scripting - Epic Developer Community Forums), but my levels are not large at all and I’m not running any server. Nonetheless I tried the solution both TheJamsh and BPANDREW suggested; turning off event driven loader. Only to find out it doesn’t work for my case.

What’s confusing to me the most is that I didn’t even know that functionality existed. Hence I wasn’t even planning to use it.

Does anyone have any idea why this is happening?

Thanks in advance.

2

I’m hitting the same error when trying to load my packaged game’s main menu

Assertion failed: !GEventDrivenLoaderEnabled || !bLockoutLegacyOperations || !EVENT_DRIVEN_ASYNC_LOAD_ACTIVE_AT_RUNTIME

3

Any Solution to this yet? i am getting the same thing

4

I’m getting this too, just curious, do you have a call stack? Mine looked like this and I was wondering if you also have UInstancedStaticMeshComponent.

Assertion failed: !GEventDrivenLoaderEnabled || !bLockoutLegacyOperations || !EVENT_DRIVEN_ASYNC_LOAD_ACTIVE_AT_RUNTIME [File:E:\Pixel\ue4-tip\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp] [Line: 3114]

[Callstack] 0x03ca333d - USimpleConstructionScript::PreloadChain()
[Callstack] 0x0330ad77 - UBlueprintGeneratedClass::FindArchetype(UClass*, FName) const
[Callstack] 0x0140687d - UObject::GetArchetypeFromRequiredInfo(UClass*, UObject*, FName, EObjectFlags)
[Callstack] 0x0143081d - FObjectInitializer::CreateDefaultSubobject(UObject*, FName, UClass*, UClass*, bool, bool, bool) const
[Callstack] 0x036ed644 - UInstancedStaticMeshComponent::UInstancedStaticMeshComponent(FObjectInitializer const&)
[Callstack] 0x01423b74 - StaticConstructObject_Internal(UClass*, UObject*, FName, EObjectFlags, EInternalObjectFlags, UObject*, bool, FObjectInstancingGraph*, bool)
[Callstack] 0x01209d88 - FAsyncPackage::EventDrivenCreateExport(int)
[Callstack] 0x012026bc - FAsyncPackage::ProcessImportsAndExports_Event()
[Callstack] 0x0120205f - FAsyncPackage::Event_ProcessImportsAndExports()
[Callstack] 0x01214b27 - FAsyncLoadEventQueue::PopAndExecute(FAsyncLoadEventArgs&)
[Callstack] 0x012133f7 - FAsyncLoadingThread::ProcessAsyncLoading(int&, bool, bool, float, FFlushTree*)
[Callstack] 0x0121b07a - FAsyncLoadingThread::TickAsyncThread(bool, bool, float, bool&, FFlushTree*)
[Callstack] 0x0121d64b - FAsyncLoadingThread::Run()
[Callstack] 0x00e35e7e - FRunnableThreadPThread::Run()
[Callstack] 0x00e20eb3 - FRunnableThreadPThread::_ThreadProc(void*)
[Callstack] 0x800006d40 - *** UNKNOWN ***
5

Not sure How to get the callStack,
but I do know that yes I am using UInstancedStaticMeshComponent.

Assertion failed: !GEventDrivenLoaderEnabled || !bLockoutLegacyOperations || !EVENT_DRIVEN_ASYNC_LOAD_ACTIVE_AT_RUNTIME
[File:D:\Build++UE4+Release-4.18+Compile\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\LinkerLoad.cpp] [Line: 3126]

6

I can get the Project to run but only if i run it from the desktop