Unreal Engine Issues and Bug Tracker (UE-28672)

Description

Crash when incorrectly calling the parent constructor

Steps to Reproduce

Open C++ project
Create a new actor class
Name it "TestActor"
Create a new actor base on TestActor and name it "CTestActor"

Add the following to the CTestActor.h

 
UCLASS()
class CODELEARNING_API ACTestActor : public ATestActor
{
	GENERATED_BODY()

		ACTestActor();
	
};

Add the following to the CTestActor.cpp

ACTestActor::ACTestActor()
{
	ATestActor::ATestActor();
}

Build the project
Notice that the project crashes

Expected: The user would be given a warning for improper calling of the parent's constructor
Result: Project crashes

Callstack

MachineId:E74C21034048BDD873CC6C9A3913CF6C
EpicAccountId:ccbf39de6f9245c0aa23f8e57cc8a566

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

"Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\CoreUObject\Private\UObject\UObjectGlobals.cpp] [Line: 2071] 
UO

UE4Editor_Core!FDebug::AssertFailed() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\misc\outputdevice.cpp:374]
UE4Editor_CoreUObject!UObject::UObject() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectglobals.cpp:2072]
UE4Editor_Engine!AActor::AActor() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\engine\private\actor.cpp:48]
UE4Editor_CodeLearning_4116!ATestE::ATestE() [c:\users\charlie.triplett\documents\unreal projects\codelearning\source\codelearning\teste.cpp:10]
UE4Editor_CodeLearning_4116!AMyTestE::AMyTestE() [c:\users\charlie.triplett\documents\unreal projects\codelearning\source\codelearning\myteste.cpp:8]
UE4Editor_CoreUObject!UClass::CreateDefaultObject() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\class.cpp:2657]
UE4Editor_CoreUObject!UObjectLoadAllCompiledInDefaultProperties() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectbase.cpp:658]
UE4Editor_CoreUObject!ProcessNewlyLoadedUObjects() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\coreuobject\private\uobject\uobjectbase.cpp:752]
UE4Editor_CoreUObject!TBaseStaticDelegateInstance<void __cdecl(void)>::ExecuteIfSafe() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegateinstancesimpl_variadics.inl:921]
UE4Editor_Core!TBaseMulticastDelegate<void>::Broadcast() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\public\delegates\delegatesignatureimpl_variadics.inl:809]
UE4Editor_Core!FModuleManager::LoadModuleWithFailureReason() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\modules\modulemanager.cpp:426]
UE4Editor_Core!FModuleManager::LoadModule() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\modules\modulemanager.cpp:298]
UE4Editor_HotReload!FHotReloadModule::DoHotReloadInternal() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\developer\hotreload\private\hotreload.cpp:706]
UE4Editor_HotReload!FHotReloadModule::DoHotReloadFromIDE() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\developer\hotreload\private\hotreload.cpp:1242]
UE4Editor_HotReload!FHotReloadModule::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\developer\hotreload\private\hotreload.cpp:1178]
UE4Editor_Core!FTicker::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\core\private\containers\ticker.cpp:79]
UE4Editor!FEngineLoop::Tick() [d:\buildfarm\buildmachine_++depot+ue4-releases+4.10\engine\source\runtime\launch\private\launchengineloop.cpp:2546]
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

Community References

[Repro Included] Constructor crashes project

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Non-Issue

Component	UE - Foundation - Core
Affects Versions	4.10.4

Created	Mar 23, 2016
Resolved	Mar 25, 2016
Updated	Jul 14, 2021