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GEditor->AddActor crash

1)Create a fresh plugin with buttons

2)change PluginButtonClicked() to

     UWorld* const World = GEditor->GetEditorWorldContext().World();
     try {
         UStaticMeshComponent* newmesh = Cast<UStaticMeshComponent>(GEditor->AddActor(World->GetCurrentLevel(), UStaticMeshComponent::StaticClass(), FTransform(FVector(0))));
     }catch (...) {}

The engine crashes. Anyone know a workaround?

Product Version: UE 4.16
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asked Jun 21 '17 at 10:45 AM in Bug Reports

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hi!!, First of all you cant add a UStaticMeshComponent to the level because GEditor->AddActor want a AActor type and UStaticMeshComponent is a UMeshComponent and this is the issue that cause the editor crash

so insted of trying to spawn a UStaticMeshComponent you should spawn a AStaticMeshActor this way:

 //dont forget to add the include file for the Actortype
 #include "Engine/StaticMeshActor.h"
 //inside PluginButtonClicked()
 UWorld* const World = GEditor->GetEditorWorldContext().World();
 AStaticMeshActor* newmesh = Cast<AStaticMeshActor>(GEditor->AddActor(World->GetCurrentLevel(),AStaticMeshActor::StaticClass(), FTransform(FVector(0))));

and the you can add the component to the actor newmesh->AddComponent(/*components parementers here*/)

Hope this helps, Luca.

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answered Jun 22 '17 at 11:39 AM

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avatar image dinosoep Jun 22 '17 at 12:38 PM

oh I see, that makes perfect sense, thanks.

avatar image hydrojan Feb 16 '18 at 07:09 AM

Thanks for answer. I had same problem about my basecharacterclass . I fix thanks to you

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