Editor Crashes on Compile

Development Platform & Builds
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1

Hello,

As the title says, my editor crashes when I compile some blueprints and I try to play the game with the editor.

Here is the error.

MachineId:F92E301545EC9136239DCE970C0163E1
EpicAccountId:a27d14574dbe49738b3474d9079c16e4

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

"Assertion failed: World == NULL [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Engine\Private\Components\ActorComponen

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\misc\outputdevice.cpp:374]
UE4Editor_Engine!UActorComponent::RegisterComponentWithWorld() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\components\actorcomponent.cpp:797]
UE4Editor_Engine!UActorComponent::RegisterComponent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\components\actorcomponent.cpp:870]
UE4Editor_Engine!`anonymous namespace’::RegisterInstancedComponent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\simpleconstructionscript.cpp:29]
UE4Editor_Engine!USimpleConstructionScript::ExecuteScriptOnActor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\simpleconstructionscript.cpp:549]
UE4Editor_Engine!AActor::ExecuteConstruction() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actorconstruction.cpp:466]
UE4Editor_Engine!AActor::FinishSpawning() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actor.cpp:2600]
UE4Editor_Engine!UGameplayStatics::FinishSpawningActor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\gameplaystatics.cpp:452]
UE4Editor_Engine!UGameplayStatics::execFinishSpawningActor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\classes\kismet\gameplaystatics.h:31]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\class.cpp:4198]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:484]
UE4Editor_CoreUObject!UObject::ProcessContextOpcode() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1755]
UE4Editor_CoreUObject!UObject::execLetObj() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1592]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:698]
UE4Editor_CoreUObject!UObject::CallFunction() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:608]
UE4Editor_CoreUObject!UObject::execVirtualFunction() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1842]
UE4Editor_CoreUObject!UObject::ProcessInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:698]
UE4Editor_CoreUObject!UFunction::Invoke() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\class.cpp:4198]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1053]
UE4Editor_Engine!AActor::ProcessEvent() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actor.cpp:580]
UE4Editor_Engine!AActor::BeginPlay() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actor.cpp:2804]
UE4Editor_Engine!AActor::PostActorConstruction() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actor.cpp:2684]
UE4Editor_Engine!AActor::FinishSpawning() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actor.cpp:2602]
UE4Editor_Engine!AGameMode::SpawnPlayerController() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\gamemode.cpp:1262]
UE4Editor_Engine!AGameMode::Login() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\gamemode.cpp:1055]
UE4Editor_Engine!UWorld::SpawnPlayActor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\levelactor.cpp:665]
UE4Editor_Engine!UWorld::NotifyControlMessage() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\world.cpp:3898]
UE4Editor_Engine!UControlChannel::ReceivedBunch() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\datachannel.cpp:1201]
UE4Editor_Engine!UChannel::ReceivedSequencedBunch() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\datachannel.cpp:270]
UE4Editor_Engine!UChannel::ReceivedNextBunch() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\datachannel.cpp:614]
UE4Editor_Engine!UChannel::ReceivedRawBunch() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\datachannel.cpp:354]
UE4Editor_Engine!UNetConnection::ReceivedPacket() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\netconnection.cpp:1044]
UE4Editor_Engine!UNetConnection::ReceivedRawPacket() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\netconnection.cpp:495]
UE4Editor_OnlineSubsystemUtils!UIpNetDriver::TickDispatch() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\online\onlinesubsystemutils\private\ipnetdriver.cpp:174]
UE4Editor_Engine!TBaseUObjectMethodDelegateInstance<0,UNetDriver,void cdecl(float)>::ExecuteIfSafe() [d:\buildfarm\buildmachine++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:772]
UE4Editor_Engine!TBaseMulticastDelegate::Broadcast() [d:\buildfarm\buildmachine++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:809]
UE4Editor_Engine!UWorld::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\leveltick.cpp:1062]
UE4Editor_UnrealEd!UEditorEngine::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\editorengine.cpp:1347]
UE4Editor_UnrealEd!UUnrealEdEngine::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\editor\unrealed\private\unrealedengine.cpp:361]
UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launchengineloop.cpp:2427]
UE4Editor!GuardedMain() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launch.cpp:142]
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

A zip of all the files.
Zip

Any help would be great!!!

Thank you!

2

Hello,

I have a few questions that can help us reproduce your issue:

  • Can you reproduce this in a clean project?
  • Is this only occurring in 4.10?
  • Do you have any repro steps that I can follow in order to reproduce the crash?
  • Can you cause the crash to occur again and ensure that you hit Send when the Crash Reporter window appears?

Thank you.

3

Thank you for your quick response.

I’ll start off with some good news. I do have a backup!!

To answer your questions:

  1. I don’t know that I could because there are a lot of BPs in my game so zeroing in on the exact BP or line of code would be very difficult, but more so very time consuming.

  2. I have not had a catastrophic error like this since 4.4 (I forget what version I started on) or so.

  3. The error occurs when I compile the 3rd Person Character BP (I used the 3PC template) or play the game from inside the editor. I have to believe it has something to do with the 3PC BP because compiling, say, my HUD widget works as expected.

  4. I can definitely cause it again. Hitting send at 12:35 p.m. PDT.

Thanks, again.

4

Thank you for providing the information and sending the crash report. After looking into the issue, it seems to be something specific to your project. If it is happening when you compile the Character Blueprint, it is possible that it is an issue with that asset. If you could zip up the project and provide me with a link to Dropbox where I could view it, I could take a closer look at the asset and see what is causing the crash. If you’re concerned with keeping the project private, let me know and I can provide you with a link to send me a link to the project in a PM.

5

Yes, a PM link would work best. Thank you.

6

Here you go: https://forums.unrealengine.com/member.php?160394-Sean-Flint

7

Hello,

I have been able to reproduce your issue, and have entered a bug report (UE-23690). For now, I would recommend attempting to migrate your assets into a clean project in an attempt to figure out exactly which asset is causing the crash. If you acquire any additional information or repro steps, feel free to post them here and I will update the bug report.

Have a great day,

Sean Flint

8

Thanks, Sean. I used a backup I had to continue work on the project. I appreciate your help!

9

This has been fixed and will be part of the 4.11 release. Thanks a ton for helping us track this down. I can get you a github commit # if you’d like to pull the fix into your copy of the engine.