Variadic template for a member function [duplicate]

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• Why can templates only be implemented in the header file? 13 answers

I have the following problem :

In my header:

Class A{
public:
    A();
    ~A();

    template<typename.. Args>
    void executeA(int i, Args ...kargs);

};

In the cpp file:

A::A(){};
A::~A(){};

template<typename... Args>
void A::executeA(int i, Args ...kargs){
   // do stuff
}

In the main:

A* a = new A();
a->executeA(1, 1.5f, 3.33f);

And I receive the following error:

Error   15  error LNK2019: unresolved external symbol "public: void __thiscall A::executeA<float,float>(int,float,float)"