Log error

Development Programming & Scripting
1

hi community , so i build my project in vs , and i got this error wich i have no idea what it can posibly mean

1>papCharacter.cpp.obj : error LNK2019: unresolved external symbol "public: void __cdecl AWeapon::OnEquip(void)" (?OnEquip@AWeapon@@QEAAXXZ) referenced in function "public: void __cdecl ApapCharacter::EquiWeapon(class AWeapon *)" (?EquiWeapon@ApapCharacter@@QEAAXPEAVAWeapon@@@Z)
1>C:\Users\Rui\Documents\Unreal Projects\pap\Binaries\Win64\UE4Editor-pap.dll : fatal error LNK1120: 1 unresolved externals

Any ideas thank you

2

Hi,

Without seeing your code and setup, it’s hard to say. At a guess, I’d say either your module dependencies are set up wrongly, or your AWeapon class does not have a MODULENAME_API macro on it to export the symbols:

https://docs.unrealengine.com/latest/INT/Programming/Modules/API/index.html

Steve

3

ive searched a lot on google for the error error LNK2019 , but it seems to be an error for a lot of difrent stuff .

I rly cant find any solution here is the part of the code i think its refering from the log

void ApapCharacter::EquipWeapon(AWeapon *Weapon)
{
	if (CurrentWeapon != NULL)
	{
		CurrentWeapon = Inventory[CurrentWeapon->WeaponConfig.Priority];
		CurrentWeapon->OnUnEquip();
		CurrentWeapon = Weapon;
		Weapon->SetOwningPawn(this);
		Weapon->OnEquip();
	}
	else
	{
		CurrentWeapon = Weapon;
		CurrentWeapon = Inventory[CurrentWeapon->WeaponConfig.Priority];
		CurrentWeapon->SetOwningPawn(this);
		Weapon->OnEquip();
	}
}

Thank you for the reply so far

4

It’s the AWeapon class definition that needs investigating. I think you have something like:

UCLASS()
class AWeapon : public AActor

… but you need something like:

UCLASS()
class WEAPONMODULE_API AWeapon : public AActor

… but I can’t really help without posting your AWeapon class definition. The contents of your .cpp files are unlikely to be relevant to this problem.

Steve

5

There’s been no further response to this thread in a month, so I’m closing it for tracking purposes. Please open a new thread if you are still having problems.

Steve