Build failed All projects

Last night my 1 yr old got to my keyboard with visual studio open. I just put my computer in sleep mode. well this morning i tried building my project, failed. I tried building another project that failed too with the same error:

1>C:\Program Files\Epic Games\4.6\Engine\Source\Runtime\Engine\Classes\Components/ActorComponent.h(303): error C2065: 'bRenderTransformDirty' : undeclared identifier
1>C:\Program Files\Epic Games\4.6\Engine\Source\Runtime\Engine\Classes\Components/ActorComponent.h(304): error C2065: 'bRenderStateDirty' : undeclared identifier
1>C:\Program Files\Epic Games\4.6\Engine\Source\Runtime\Engine\Classes\Components/ActorComponent.h(367): error C2065: 'bRenderStateCreated' : undeclared identifier
1>C:\Program Files\Epic Games\4.6\Engine\Source\Runtime\Engine\Classes\Components/ActorComponent.h(373): error C2065: 'bPhysicsStateCreated' : undeclared identifier
1>C:\Program Files\Epic Games\4.6\Engine\Source\Runtime\Engine\Classes\Components/ActorComponent.h(442): error C2065: 'bRegistered' : undeclared identifier
1>  -------- End Detailed Actions Stats -----------------------------------------------------------
1>ERROR : UBT error : Failed to produce item: C:\Users\Colleen\Documents\Unreal Projects\ParticleTest\Binaries\Win64\UE4Editor-ParticleTest-8425-Win64-DebugGame.dll
1>  Cumulative action seconds (2 processors): 0.00 building projects, 17.93 compiling, 0.00 creating app bundles, 0.00 generating debug info, 0.00 linking, 0.00 other
1>  UBT execution time: 26.38 seconds

I hope she didn’t delete an engine file T_T I opened the “last build that worked” and it still gives me the SAME error :frowning:


I ended up needing to reinstall the version on UE i was using, fixed! (I’d put it to resolved but i don’t know how)

Note to self: Shut the room door EVERY TIME I leave, even if it’s only for a few seconds…

Are you using Source Code or Binary?

At any rate, I would suggest that you take advantage, at least for your game modules to consider using Source Control. GIthub is really great for small/solo projects.

I think to resolve your own question you can just hit a tick beneath the Vote Feature.


I was using Source. thanks, i’ll look into it ^ ^

thanks for the suggestion, but the only thing under the question vote thing on the left is a star which make the question a favorite.

Oh, well than this problem only works with giving an Answer and than there would be probably be the tick.