Cannot implement "GenericTeamAgentInterface"

Development Programming & Scripting UI
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1

I’m trying to implement the TeamID variable for my character class so that the AIPerception stuff can detect the teams following this tutorial AI Perception in Unreal Engine 4 – How to Setup – Programming Tutorials

However when I try to add the interface the compiler asks me to implement every single function and stuff out of the generated file and gives me the linking errors:

Determining max actions to execute in parallel (8 physical cores, 8 logical cores)
Building 4 actions with 4 processes...
  [1/4] Compile BaseCharacter.gen.cpp
  [2/4] Compile BaseCharacter.cpp
  [3/4] Link (lld) libUnrealEditor-FLife2.so
  ld.lld: error: undefined symbol: Z_Construct_UClass_UGenericTeamAgentInterface_NoRegister()
  >>> referenced by BaseCharacter.gen.cpp
  >>>               /media/manjaro/AFiles/WorkCopies/FLife2-UE/FLife2/Intermediate/Build/Linux/B4D820EA/UnrealEditor/Development/FLife2/BaseCharacter.gen.cpp.o:(Z_Construct_UClass_ABaseCharacter_Statics::InterfaceParams)
  clang++: error: linker command failed with exit code 1 (use -v to see invocation)
The terminal process "bash '-c', 'Engine/Build/BatchFiles/Linux/Build.sh FLife2Editor Linux Development /media/manjaro/AFiles/WorkCopies/FLife2-UE/FLife2/FLife2.uproject -waitmutex'" terminated with exit code: 6.

BaseCharacter.h :

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Character.h"
#include "UObject/Interface.h"
#include "GenericTeamAgentInterface.h"
#include "BaseCharacter.generated.h"



UCLASS()
class FLIFE2_API ABaseCharacter : public ACharacter, public IGenericTeamAgentInterface
{
	GENERATED_BODY()


//----------------------------------------------------------------------//
// IGenericTeamAgentInterface
//----------------------------------------------------------------------//
private:
	FGenericTeamId TeamID;
public:
	virtual void SetGenericTeamId(const FGenericTeamId& NewTeamID) override;
	virtual FGenericTeamId GetGenericTeamId() const override { return TeamID; }
	virtual ETeamAttitude::Type GetTeamAttitudeTowards(const AActor& Other) const;


};

BaseCharacter.cpp :

#include "BaseCharacter.h"



ETeamAttitude::Type ABaseCharacter::GetTeamAttitudeTowards(const AActor& Other) const
{
	return ETeamAttitude::Neutral;
}


void ABaseCharacter::SetGenericTeamId(const FGenericTeamId& NewTeamID)
{
	if (TeamID != NewTeamID)
	{
		TeamID = NewTeamID;
		// @todo notify perception system that a controller changed team ID
	}
}

Please any help would be appreciated! I’m really at a loss and I can’t find anyone with a similar issue.

2

Hi, did you include “AIModule” in your project dependencies? And by the way, AFAIK you don’t need to implement “GetTeamAttitudeTowards”, I at least didn’t (and it may not be a good idea to just return neutral there for everything…)

3

O ■■■■ that actually worked! Thanks alot dude!
Yea those functions were only there because It was asking me to implement everything. Kinda a confusing error.

4

That worked! Thanks alot!

5

How to do it?

6

In your game’s Build.cs file, you need to add AIModule in your PublicDependencyModuleNames

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