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Why do I get a LNK error for GetLifetimeReplicatedProps() in a class that does not use that function?

Why do I get a LNK error for GetLifetimeReplicatedProps() in a class that does not use that function?

Even stranger, if I ignore the error and just compile again it says:

 1>  Compiling game modules for hot reload
 1>  Target is up to date.
 ========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========

Is the second compile really a successful compile?

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asked Apr 27 '15 at 05:53 PM in C++ Programming

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Erdrik
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1 answer: sort voted first

I had this problem too,in my case it happens when an UPROPERTY has the "REPLICATED" flag on it.

How To Fix It:

In Your .h :

 UPROPERTY(replicated)
 AYourActorClass* ClassOwner;

In Your .cpp :

 void AYourClassName::GetLifetimeReplicatedProps( TArray< FLifetimeProperty > & OutLifetimeProps ) const
 {
     DOREPLIFETIME(AYourActorClass, ClassOwner);
 }


Hope this solves your problem. I Kinda guess this function is needed for replication.

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answered Apr 17 '16 at 02:43 PM

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iSpakkio
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