UFUNCTION repliation error

Development Programming & Scripting
1

hello I have a replicated function but it has many errors with LNK

character.h

 #include "Net/UnrealNetwork.h"
 #include "Engine.h"
 #include "GameFramework/Character.h"
 #include "MyCharacter.generated.h"

 	UFUNCTION(Server, WithValidation)
     void ReplicatedFunction();

character.cpp

 #include "MyCharacter.h"

 void AMyCharacter::ReplicatedFunction_Implementation()
 {
      //do stuff
 }

 bool AMyCharacter::ReplicatedFunction_Validate()
 {
     return true;
 }
2

Are you compiling from Visual Studio or from within the Editor.

Try compiling from within the editor.

3

You forgot the reliable keyword within the macro

UFUNCTION(Server, Reliable, WithValidation)

4

First things first, don’t include UnrealNetwork.h in your header file. Also please remove Engine.h from your header file and replace it with CoreMinimal.h !

Second thing, the correct line is

UFUNCTION(Server, Reliable)
void ReplicatedFunction();

WithValidation is no longer required unless you want to specifially return false. So just ommit it.

In your cpp file, add #include UnrealNetwork.h
and remove the

  bool AMyCharacter::ReplicatedFunction_Validate()
  {
      return true;
  }

This is new in later engines (the non-requirement for WithValidation) and i see you are using 4.24.

5

thanks that helped